Let's say I have a random number generator for 3 categories:
| Prob | Yield |
|---|---|
| 0.1 | 10 |
| 0.2 | 5 |
| 0.7 | 2 |
The expected yield is 1 + 1 + 1.4 = 3.4
Currently I have something like this
sum = 0
N = 10000
for i in 1 to N:
sum += getYeild()
assert(sum / N - 3.14 < some threshold)
So what is the best criterion I can use for this unit test to make an assertion?
I wrote a program to create the appearance of a snake sliding down the screen. You can pass in a width and length for the path the snake travels down. The snake moves at random staying within the width confines given.
All works fairly well, except when testing my guard rails to keep the snake within the defined width. I noticed at times the snake position (left_side) appears to be able to go to a negative value. Given that I have a guard rail that when left_side == 0 it should only be able to move back right given that when that condition is true my only values I can add to is should be 0 or 1.
How do I fix this?
My code:
import random
import time
def path(path_width, snake_pos):
path = ""
for space in range(path_width + 1):
if space == 0:
path = path + "|"
if space == snake_pos:
path = path + "()"
if space == width:
path = path + "|"
else:
path = path + " "
return path
width = int(input("How wide is your course? "))
length = int(input("How long is your course? "))
left_side = random.randint(1, width -1)
i=1
while i < length:
if left_side == 0:
left_side = left_side + random.randint(0, 1)
if left_side == width:
left_side = left_side + random.randint(-1, 0)
else:
left_side = left_side + random.randint(-1, 1)
print(path(width, left_side) + " : leftside = " + str(left_side))
i += 1
time.sleep(.05)
I want to login with my mail address, but the password, I want to find out with my brute force python script here:
import requests
import random
s = requests.session()
here is my form data except the password:
payload = {
"username": "maixr_p4ter@web.de",
}
password = payload["password"] = ""
here are some chars, that I converted to a list and I want that my script tries all possibilities:
chars="AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz01234567890"
chars_list = list(chars)
response = s.post("https://login.web.de/login",data=payload)
and here is my while-loop, I declared that if the password does not equal to result.status_code == 200, he should play the loop over and over. (As you know status_code returned a 200 , which means the request was successful and the server responded with the data I was requesting)
while(password != (result.status_code == 200)):
password = random.choices(chars_list)
print("<=="+str(guess_password)+"==>")
if(password == list(password)):
print("Your password is: "+ "".join(password))
but it gives me in the end: IndentationError: unexpected indent maybe you can help me to fix my problem.
all code:
import requests
import random
s = requests.session()
payload = {
"username": "meier_peter8@web.de",
}
password = payload["password"] = ""
chars="AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz01234567890"
chars_list = list(chars)
response = s.post("https://login.web.de/login",data=payload)
while(password != (result.status_code == 200)):
password = random.choices(chars_list)
print("<=="+str(guess_password)+"==>")
if(password == list(password)):
print("Your password is: "+ "".join(password))
Bash 5.1 introduces SRANDOM variable, but does it make any difference when used like this?
for i in {1..10}; do
nbr=$((RANDOM%50))
nbr1=$((SRANDOM%50))
echo "$nbr -- $snbr"
done
9 -- 21
35 -- 43
27 -- 15
7 -- 24
41 -- 31
37 -- 35
23 -- 47
14 -- 23
9 -- 37
6 -- 30
From the manual:
RANDOM
Each time this parameter is referenced, it expands to a random integer between 0 and 32767. Assigning a value to this variable seeds the random number generator. If RANDOM is unset, it loses its special properties, even if it is subsequently reset
SRANDOM
This variable expands to a 32-bit pseudo-random number each time it is referenced. The random number generator is not linear on systems that support /dev/urandom or arc4random, so each returned number has no relationship to the numbers preceding it. The random number generator cannot be seeded, so assignments to this variable have no effect. If SRANDOM is unset, it loses its special properties, even if it is subsequently reset.
I don't understand what is meant by non-linear and seeding, but for my example is there a reason to use RANDOM over SRANDOM or vice-versa, or it doesn't make any difference?
In a for my personal life program (for a video game I plays), I want to write a C program witch will generate a random number between 1 and a given number.
How do I use the C random function?
(Of course I can use google random number generator, but what's the fun in that?)
we have an array p = [[none]*5]*6 and we want to fill it with number 1
something like this:
[[1, none, none, 1, 1],[none, 1, none, 1, none],[none, 1, 1, 1, none], [1, none, 1, none, 1], [none, 1, none, 1, none],[1, none, 1, none, none]]
I want to repletely generate different random values for every 1 second and publish it to MQTT protocol. The code is working but it is keep sending the last value how to make it that it will send a different value every 1 second?
var mqtt = require('mqtt')
var Broker_URL = 'mqtt://localhost';
var client = mqtt.connect(Broker_URL);
var MIN_PER_RANK =75
var MAX_PER_RANK =100
client.on('connect', function () {
console.log("MQTT connected "+ client.connected);
})
class virtualsensor {
sendStateUpdate (newdata) {
client.publish("testtopic", newdata)
}
}
let vs = new virtualsensor()
let newdata = '';
for (var i=0; i<5; i++){
newdata= String(Math.floor(Math.random() * (MAX_PER_RANK - MIN_PER_RANK + 1) + MIN_PER_RANK));
vs.sendStateUpdate(newdata)
}
var interval = setInterval(function(){vs.sendStateUpdate(newdata)},1000);
the output:
testtopic 81
testtopic 76
testtopic 89
testtopic 100
testtopic 96
testtopic 96
testtopic 96
testtopic 96
testtopic 96
testtopic 96
testtopic 96
testtopic 96
testtopic 96
Thanks in advance.
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
main()
{
int ctr, inner, outer, didSwap, temp;
int nums[10];
time_t t;
srand(time(&t));
for (ctr = 0; ctr < 10; ctr++)
{
nums[ctr] = (rand() % 99) + 1;
}
printf("\nHere is the list before the sort:\n");
for (ctr = 0; ctr < 10; ctr++)
{
printf("%3d",nums[ctr]);
}
// Sorting the array
for (outer = 0; outer < 9; outer++)
{
didSwap = 0;
for (inner = outer + 1; inner < 10; inner++)
{
if (nums[inner] < nums[outer])
{
temp = nums[inner];
nums[inner] = nums[outer];
nums[outer] = temp;
didSwap = 1;
}
}
if (didSwap == 0)
{
break;
}
}
printf("\n\nHere is the list after sorting:\n");
for (ctr = 0; ctr < 10; ctr++)
{
printf("%3d", nums[ctr]);
}
printf("\n");
return 0;
}
Sometimes it doesn't sort the list properly and sometimes doesn't sort at all. Screenshot of error
I'm trying to create a random movie generator. I've already created a generator that displays a new movie after a button is clicked. But I want to create a table that will display more information about each movie that is generated i.e the director, genre, year etc. I want this information to be generated into a table each time and the correct data to be under the correct heading in the table.
Example of how the data would look
HTML so far:
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
<link rel="stylesheet" href="movie.css">
<title>Movie Generator</title>
</head>
<body><div class="container">
<div class="row flex-top justify-content-center">
<header class="border shadow">
<h1>Movie Generator</h1>
</header>
</div>
<div class="row flex-top justify-content-center">
<button id="button" class="btn-large new-movie-button" onClick="getMovie()">New Movie</button>
</div>
<div class="row justify-content-center">
<main class="card">
<p class="movie card-body center" id="newMovieSection"></p>
</main>
</div>
</div>
<script src="movie.js"></script>
</body>
</html>
CSS so far:
header {
padding: 2em;
background-color: black;
margin-top: 2em;
text-align: center;
color: white;
}
.movie {
font-size: 2em;
}
.btn-large {
margin: 0.5em
}
.card {
text-align: center;
width: 45em;
}
.new-movie-button{
background-color: rgb(77, 87, 97);
border-color: black;
color: white;
}
button:hover {
background-color: rgb(142, 155, 168);
color: white;
}
JavaScript so far:
var movies = [
"Twilight",
"The Twilight Saga: New Moon",
"The Twilight Saga: Eclipse",
"The Twilight Saga: Breaking Dawn - Part 1",
"The Twilight Saga: Breaking Dawn - Part 2",
"Star Wars: Episode IV - A New Hope ",
"Star Wars: Episode V - The Empire Strikes Back",
"Star Wars: Episode VI - Return of the Jedi",
"Star Wars: Episode I - The Phantom Menace",
"Star Wars: Episode II - Attack of the Clones",
"Star Wars: Episode III - Revenge of the Sith",
"Star Wars: Episode VII - The Force Awakens ",
"Star Wars: Episode VIII - The Last Jedi ",
"Star Wars: The Rise of Skywalker",
"Rogue One: A Star Wars Story",
"Iron Man ",
"Iron Man 2",
"Iron Man 3",
"The Incredible Hulk",
"Thor",
"Thor: The Dark World",
"Thor: Ragnarok",
"Captian America: The First Avenger ",
"Captian America: The Winter Soldier",
"Captian America: Civil War",
"Avengers Assemble ",
"Avengers: Age of Ultron ",
"Avengers: Infinity War",
"Avengers: Endgame",
"Black Panther ",
"Doctor Strange ",
"Ant-Man",
"Ant-Man and the Wasp",
"Spider-Man: Homecoming ",
"Spider-Man: Far from Home",
"Guardians of the Galaxy ",
"Guardians of the Galaxy Vol.2",
"Harry Potter and the Philosopher's Stone ",
"Harry Potter and the Chamber of Secrets ",
"Harry Potter and the Prisoner of Azkaban ",
"Harry Potter and the Goblet of Fire ",
"Harry Potter and the Order of the Phoenix ",
"Harry Potter and the Half-Blood Prince ",
"Harry Potter and the Deathly Hallows: Part 1 ",
"Harry Potter and the Deathly Hallows: Part 2",
"The Lord of the Rings: The Fellowship of the Ring ",
"The Lord of the Rings: The Two Towers ",
"The Lord of the Rings: The Return of the King ",
"The Hobbit: An Unexpected Journey ",
"The Hobbit: The Desolation of Smaug ",
"The Hobbit: The Battle of Five Armies ",
"Spider-Man",
"Spider-Man 2",
"Spider-Man 3",
"Mission: Impossible ",
"Mission: Impossible II",
"Mission: Impossible III",
"Mission: Impossible - Ghost Protocol",
"Mission: Impossible - Rogue Nation ",
"Mission: Impossible - Fallout ",
"Rise of the Planet of the Apes",
"Dawn of the Planet of the Apes",
"War for the Planet of the Apes",
"The Bourne Identity ",
"The Bourne Supremacy",
"The Bourne Ultimatum ",
"The Bourne Legacy",
"Jason Bourne ",
"The Amazing Spider-Man ",
"The Amazing Spider-Man 2",
"Jurassic Park",
"The Lost World: Jurassic Park",
"Jurassic Park III",
"Jurassic World",
"Jurassic World: Fallen Kingdom",
"Jumanji",
"Jumanji: Welcome to the Jungle",
"Jumanji: The Next Level",
"The Fast and the Furious ",
"2 Fast 2 Furious",
"The Fast and the Furious: Tokyo Drift ",
"Fast & Furious",
"Fast & Furious 5",
"Fast & Furious 6",
"Fast & Furious 7",
"Fast & Furious 8",
"Fast & Furious: Hobbs & Shaw",
"Transformers",
"Transformers: Revenge of the Fallen",
"Transformers: Dark of the Moon",
"Transformers: Age of Extinction",
"Transformers: The Last Knight ",
"X-Men",
"X2",
"X-Men: The Last Stand",
"X-Men Origins: Wolverine ",
"X-Men: First Class",
"The Wolverine ",
"X-Men: Days of Future Past",
"Logan",
]
function getMovie() {
var randomNumber = Math.floor(Math.random() * movies.length);
document.getElementById("newMovieSection").innerHTML = movies[randomNumber];
}
I am trying to create a list of random numbers (integers) in fortran 77 but can't quite make it work.
My problem is a want a list of N random integers, say N = 100. But also, I want the random numbers to only appear in a range between 1 and N.
So if I make:
do 1001 j=1, N
ar = IRAND()
print*, j,ar
1001 continue
That just gives me a list of integers from 0 through 2147483647.
Is there a way to change the range in IRAND()? or quick fix at least?
I want to create random string filled with "S" and "O". For example, my desired output is like:
SSOSOOSO
OSOOSSOS
SSSOOSSO
OSOSOSOO
With my code I change randomly every line, so what is the way to change every position?
import random
rows = 4
columns = 8
char_list = ['S', 'O']
for i in range(rows):
print(random.choice(char_list) * columns)
My current output:
SSSSSSSS
SSSSSSSS
OOOOOOOO
SSSSSSSS
hey guys I’m making a small project using c# for my class the program is 1- ask user to enter in Integer value between 2 and 9 This value from user gave you the maximum for random number for ex if the user write 7 the maximum will be 7 nines (9999999) and like this 2-crate a random number from 10 and the maximum depend on the value from user as I said before if 5 the random number limit will be between (10, (99999+1))
3-after crated the random number I need to create an array using that random number from before for ex if the user writes 3 The random number will be between (10, (999+1)) for ex the random number will be 271 I need to full the array using that number starting from right Like this:
Array[0]=1
Array[1]=7
Array[2]=2
this how the program should be and i want the answer like this Please i want the answer without function or method Sorry about my english And thank you ♥️
I am using Python 3.9 & have a list list1 = ['a', 'b', 'c', 'd'] I want to get a random item from the list without using any module like there is a module random in Python and a function random.choice(list1) I can use this but is there another way to get a random item from a list in Python without using any module?
I have a list with 79 entries that each look similar to this:
"YellowCircle1.png\tc\tColor"
That is, each entry has 3 elements (.png-file, a letter, and a category). The category can be color, number or shape.
I want to create a new list from this, pseudo-randomized. That is, I want to have all 79 entries in a random order, but with a limitation.
I have created a perl script for a completely random version using shuffle:
# !/usr/bin/perl
# Perl script to generate input list for E-Prime experiment
# with semi-randomized trials
# Date: 2020-12-30
# Open text file
$filename = 'output_shuffled.txt';
open($fh, '>', $filename) or die "Could not open file '$filename'";
# Generate headline
print $fh "Weight\tNested\tProcedure\tCardIMG1\tCardIMG3\tCardIMG4\tCardStim\tCorrectAnswer\tTrialType\n";
# Array with list of stimuli including corresponding correct response and trial type
@stimulus = (
"BlueCross1.png\tm\tColor",
"BlueCross2.png\tm\tColor",
"BlueStar1.png\tm\tColor",
"BlueStar3.png\tm\tColor",
"BlueTriangle2.png\tm\tColor",
"BlueTriangle3.png\tm\tColor",
"GreenCircle1.png\tv\tColor",
"GreenCircle3.png\tv\tColor",
"GreenCircle1.png\tv\tColor",
"GreenCircle3.png\tv\tColor",
"GreenCross1.png \tv\tColor",
"GreenCross4.png\tv\tColor",
"GreenTriangle3.png\tv\tColor",
"GreenTriangle4.png\tv\tColor",
"RedCircle2.png\tc\tColor",
"RedCircle3.png\tc\tColor",
"RedCross2.png\tc\tColor",
"RedCross4.png\tc\tColor",
"RedStar3.png\tc\tColor",
"RedStar4.png\tc\tColor",
"YellowCircle1.png\tn\tColor",
"YellowCircle2.png\tn\tColor",
"YellowStar1.png\tn\tColor",
"YellowTriangle2.png\tn\tColor",
"YellowTriangle4.png\tn\tColor",
"BlueCross1.png\tc\tNumber",
"BlueCross2.png\tv\tNumber",
"BlueStar1.png\tc\tNumber",
"BlueStar3.png\tn\tNumber",
"BlueTriangle2.png\tv\tNumber",
"GreenCircle1.png\tc\tNumber",
"GreenCircle3.png\tn\tNumber",
"BlueCross1.png\tm\tColor",
"BlueCross2.png\tm\tColor",
"BlueStar1.png\tm\tColor",
"BlueStar3.png\tm\tColor",
"BlueTriangle2.png\tv\tNumber",
"BlueTriangle3.png\tn\tNumber",
"GreenCircle1.png\tc\tNumber",
"GreenCircle3.png\tn\tNumber",
"GreenCross1.png\tc\tColor",
"GreenCross4.png\tm\tColor",
"GreenTriangle3.png\tn\tColor",
"GreenTriangle4.png\tm\tColor",
"RedCircle2.png\tv\tNumber",
"RedCircle3.png\tn\tNumber",
"RedCross2.png\tv\tNumber",
"RedCross4.png\tm\tNumber",
"RedStar3.png\tn\tColor",
"RedStar4.png\tm\tColor",
"YellowCircle1.png\tc\tColor",
"YellowCircle2.png\tv\tColor",
"YellowStar1.png\tc\tNumber",
"YellowStar4.png\tm\tNumber",
"YellowTriangle2.png\tv\tNumber",
"YellowTriangle4.png\tm\tNumber",
"BlueCross1.png\tn\tShape",
"BlueCross2.png\tn\tShape",
"BlueStar1.png\tv\tShape",
"BlueStar3.png\tv\tShape",
"BlueTriangle2.png\tc\tShape",
"BlueTriangle3.png\tc\tShape",
"GreenCircle1.png\tm\tShape",
"GreenCircle3.png\tm Shape",
"GreenCross1.png\tn\tShape",
"GreenCross4.png\tn\tShape",
"GreenTriangle3.png\tc\tShape",
"GreenTriangle4.png\tc\tShape",
"RedCircle2.png\tm\tShape",
"RedCircle3.png\tm\tShape",
"RedCross2.png\tn\tShape",
"RedCross4.png\tn\tShape",
"RedStar3.png\tv\tShape",
"RedStar4.png\tv\tShape",
"YellowCircle1.png\tm\tShape",
"YellowCircle2.png\tm\tShape",
"YellowStar1.png\tv\tShape",
"YellowStar4.png\tv\tShape",
"YellowTriangle2.png\tc\tShape",
"YellowTriangle4.png\tc\tShape",
);
# Shuffle --> Pick at random without double entries
use List::Util 'shuffle';
@shuffled = shuffle(@stimulus);
# Print each line with fixed values and shuffled stimulus entries to file
print $fh "1\t" . "\t" . "TrialProc\t" . "RedTriangle1.png\t" . "Greenstar2.png\t" . "YellowCross3.png\t" . "BlueCircle4.png\t" . "\t$_\n" for @shuffled;
# Close text file
close($fh);
# Print to terminal
print "Done\n";
However, what I eventually want is that the category does not switch more than once successively, but every 3 up to 5 times (randomly between these numbers). For example, if one line ends with "shape" and the following line with "color", the next line would have to be "color", because otherwise there would be 2 switches successively.
How would I create this? I suspect I would have to change the entries to something like hashes, so that I can create if-constructions based on the last element (that is "category") of each entry?
In hackerrank,this question is failing 8 out of 15 testcases,can someone please correct this and tell me what is wrong.
Also I want to use random in this question and not by other methods.
import random
inputting values in list
arr=[int(x) for x in input().split()]
assigning a randomly selected large number for minimum (mini)
mini=1000000000000
maxi=0
for x in range(len(arr)-1):
randomsum=sum(random.sample(arr,4))
if randomsum<mini:
mini=randomsum
if randomsum >maxi:
maxi=randomsum
print(mini,maxi)
I have the following transparent images.
What I want to do is to paste them on an image with a background of a specific color. The color of the background is randomized like this:
rand1, rand2, rand3 = (random.randint(0, 255),
random.randint(0, 255),
random.randint(0, 255))
background = Image.new('RGBA', png.size, (rand1, rand2, rand3))
alpha_composite = Image.alpha_composite(background, png)
Unfortunately, some of the logos don't go well with their background colors. The background color sometimes comes close to color(s) inside the logo, which makes the logo either partially or completely invisible. Here is an example where the background color is almost identical to the orange color in the Ubuntu logo:
What I did was to get all of the colors from each logo and save them in a list of tuples like this. This is actually a list of lists of tuples. I've just edited it now to highlight which nested list of tuples belong to which logo:
Intel = [(0, 113, 197)]
Corsair = [(4, 7, 7)]
Google = [(66, 133, 244), (234, 67, 53), (251, 188, 5), (52, 168, 83), (0, 255, 255), (255, 128, 0), (255, 255, 0)]
Riot = [(209, 54, 57), (255, 255, 255), (226, 130, 132), (0, 0, 0)]
What I want to do is to use the above ^ information to randomly choose background colours so that no part of a logo is made invisible. I'm asking for suggestions on strategies to go about this..
I've learning JS for a week so I know, it's terrible code. However I have a question. How can I randomly generate numbers without repetition in this case? Btw. sorry for my english XD
let lottoArray = [];
lottoGame()
function lottoGame () {
do {
let addNumber = Math.floor(Math.random()* 30);
lottoArray.push(addNumber)
console.log(addNumber)
} while(lottoArray.length <= 5 ) {
}
document.querySelector('.loti').innerHTML = lottoArray
}I'm new to Javascript, as of right now I just watched a 3 hour-long tutorial and took part in a few private programming lessons. I was assigned my first project where I try to simulate a battle between two armies. Here is the code.
var myArmy = ["arcieri", "fanteria", "cavalleria", "morale"] // <--- my Army brigades
function rng_loop() {
Math.floor(Math.random * myArmy.length) // <---- the rng function
}
while (myArmyStrength > 0 && enemyArmyStrength > 0) {
rng_loop()
} if (rng_loop() > 1) {
enemyArmyStrength - 25
} else if (rng_loop() < 1) {
myArmyStrength - 20
}
/* this is what was supposed to be my loop generating random numbers and killing off both armies based on the value of said random numbers until one of the two armies got to 0. myArmyStrength and enemyArmyStrength were specified earlier on. */
if (myArmyStrength > 0 && enemyArmyStrength <= 0) {
console.log("we won the battle! Roma invicta!")
} else if (myArmyStrength <= 0 && enemyArmyStrength > 0) {
console.log("We lost the battle...")
}
/* this if else statement was supposed to console.log a message either announcing a victory or defeat to the enemy army, but it's not console.logging anything. Why is that so? */
Following is the query I'm using to scrub some fields in the JSONB column. I'm trying to radomize the first and last name so would like to use something like md5(random()::text) as values.
update people set
data = to_jsonb(data) || '{"firstName": "random_text", "lastName": "random_text"}'
where id = 'b3c09005-7afb-4ad6-922d-76078875e59e';
I tried replacing "random_text" with md5(...) but I get an error "DETAIL: Token "md5" is invalid.". I also tried using || to concat but that didn't work either.
I have written a Python program to generate password. There is a glitch because it is not properly shuffled. Please suggest some methods to do it. Also suggest better methods for the same.
import random
import array
digits = ['0','1','2','3','4','5','6','7','8','9']
lowercase = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
uppercase = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
Symbols = ['!','@','#','$','%','*','&']
mixture = digits + lowercase + uppercase + Symbols
random_digit = random.choice(digits)
random_lowercase = random.choice(lowercase)
random_uppercase = random.choice(uppercase)
random_symbol = random.choice(Symbols)
Password = random_digit + random_lowercase + random_uppercase + random_symbol
length = random.randint(8,12)
for x in range (length) :
Password = Password + random.choice(mixture)
print(Password)
I have tried to add a 'while True' loop but it shows the error 'str object is not callable'. Please help me on this one. I need an extension of this already written code game.
import random
user_score = 0
computer_score = 0
user_score = 0
computer_score = 0
input = input("Choose your move, Rock, Paper or Scissors: ").upper()
comp = ["ROCK", "PAPER", "SCISSORS"]
computer_move = random.choice(comp)
if input == "ROCK":
if computer_move == "PAPER":
print("You lost. Better luck next time!")
computer_score += 1
elif computer_move == "SCISSORS":
print("You won! Well done.")
user_score += 1
elif input == "PAPER":
if computer_move == "ROCK":
print("You won! Well done.")
user_score += 1
elif computer_move == "SCISSORS":
print("You lost. Better luck next time!")
computer_score += 1
elif input == "SCISSORS":
if computer_move == "ROCK":
print("You lost. Better luck next time!")
computer_score += 1
elif computer_move == "PAPER":
print("You won! Well done.")
user_score += 1
elif input == computer_move:
print("It's a tie!")
print(f"Your Score: {user_score} ; Computer Score: {computer_score} ")
I am beginner in dart with flutter and I need to display a random string on the app screen.
I know how to get a random string but I am facing problems in trying to display it on the app screen.
So how do I display this string on the user's screen? Sorry, I am only a beginner and can't find this anywhere.
Thank you.
I'm looking to encrypt license keys on an audio software plugin. The biggest risk to the integrity of the license keys is small-time crackers decompiling the code and looking for the encryption key. My solution is to store an arbitrary number in the code and feed it to an algorithm that will obfuscate the encryption key while still allowing me to differ the key between projects (I'm a freelancer).
My question is - will seeding the C++ random number generator create the same psuedo-random encryption key every time, or will it differ between runs, libraries, etcetera. It's fine if it differs between operating systems, I just need it to not differ between SDKs and hosting softwares on the same computer.
I am an English teacher and I created an exercise, using Hotpotatoes, to demonstrate to my student how to make sentences from different words. The words are in alphabetical order so I can easily find the word I want to use.
But there is a code in the script that shuffles them every time I start or restart the html file. I have no experience in coding. I have been trying to change the two shuffle functions to make them stop from shuffling. Deleting them did not work, the whole exercise disappeared. By the way, the file is not a test; it's just me demonstrating to the kids over the Internet how to make sentences by dragging the words and putting them together.
The file was too big for here. Here are the two codes that I believe are doing the shuffling:
function Shuffle(InArray){
var Num;
var Temp = new Array();
var Len = InArray.length;
var j = Len;
for (var i=0; i<Len; i++){`enter code here`
Temp[i] = InArray[i];
}
for (i=0; i<Len; i++){
Num = Math.floor(j * Math.random() *1);
InArray[i] = Temp[Num];
for (var k=Num; k < (j-1); k++) {
Temp[k] = Temp[k+1];
}
j--;
}
return InArray;
}
Segments = Shuffle(Segments);
I am an English teacher and I created an exercise, using Hotpotatoes, to demonstrate to my student how to make sentences from different words. The words are in alphabetical order so I can easily find the word I want to use. But there is a code in the script that shuffles them every time I start or restart the html file. Please help me. I have no experience in coding whatsoever. I spent few hours trying to change the two shuffle functions to make them stop from shuffling. Deleting them did not work, the whole exercise disappeared. By the way, the file is not a test just me demonstrating to the kids over the Internet how to make sentences by dragging the words and putting them together. Thank you in advance.
The file was too big for here. Here are the two codes that I believe are doing the shuffling:
function Shuffle(InArray){
var Num;
var Temp = new Array();
var Len = InArray.length;
var j = Len;
for (var i=0; i<Len; i++){`enter code here`
Temp[i] = InArray[i];
}
for (i=0; i<Len; i++){
Num = Math.floor(j * Math.random() *1);
InArray[i] = Temp[Num];
for (var k=Num; k < (j-1); k++) {
Temp[k] = Temp[k+1];
}
j--;
}
return InArray;
}
Segments = Shuffle(Segments);
I am working in R.
I have a data frame column with female or male and some NAs.
Now, I want to randomly assign female or male to the NA values in this column. I do not want to have all NAs be male or female but every NA randomly assigned either or.
How do I do that?
Best, corkinabottle
I have 25 batch jobs that are executed constantly, that is, when number 25 is finished, 1 is immediately started.
These batch jobs are started using an URL that contains the value 1 to 25. Basically, I use a for loop from 1 to 25 where I, in each round, call en URL with the current value of i, http://batchjobserver/1, http://batchjobserver/2 and so on.
The problem is that some of these batch jobs are a bit unstable and sometimes crashes which causes the for-loop to restart at 1. As a consequence, batch job 1 is run every time the loop is initiated while 25 runs much less frequently.
I like my current solution because it is so simple (in pseudo code)
for (i=1; i < 26; i++) {
getURL ("http://batchjob/" + Integer.toString(i));
}
However, I would like I to be a random number between 1 and 25 so that, in case something crashes, all the batch jobs, in the long run, are run approximately the same number of times.
Is there some nice hack/algorithm that allows me to achieve this?
Other requirements:
Randomness has another advantage: it is desirable if the execution of these jobs looks a bit manual.
I am taking a course in RL and many times, learning policy parameters of value function weights essentially boils down to using Stochastic Gradient Descent (SGD). The agent is represented as having a sequence of states S_t, actions A_t, and reaping rewards R_t at time t of the sequence.
My understanding of SGD in general, e.g when applied using training datasets on neural nets, is that we assume the data in the mini-batches to be iid, and this makes sense because in a way we are "approximating" an expectation using an average of gradients over points that are supposedly drawn from independent but exactly similar distributions. So why is it that we use SGD in RL while incrementing through time? Is that due to the implicit assumption of conditional independence for the distribution of p(S_t | S_{t-1})?
Thanks for clarifying this point. Amine
Ive got this java class where I want to randomly generate a year between 2020 and 2022 using random class .I know the code below wont do the trick so can you please help me
Random random = new Random();
int year=random.nextInt(2022-2020 +1);
I'm using SQLALchemy and Postgresql.
Imagine I have a SQLAlchemy class Items,
There are 100 items in this table, I want to get for example 200 random rows(expected rows are not unique indeed).
for getting less than 100 easily I do:
items = session.query(Items)\
.order_by(func.random())\
.limit(80)\
.all()
But how can I get more than 100 rows if only I have 100?
-Read seed number and set seed -In a loop, generate a random integer between 1 and 6(inclusive of the limit), and increment a counter the number of iterations. -If the number generated is 6, exit the loop -Print the number of iterations
Sample input 0
Sample output 3 5 5 6 4
everyone. I try to make Quiz app randomly and without duplication in React Native . Successfully Quiz are displayed randomly. But I don't know how to display them without duplication . I am very new to learn React Native. If you have any idea to solve this issue , please help me . I use Mac book pro , Visual Code Studio and React Native.
I write the code as below .
export function App() {
const questions = [
{
questionText: "city",
answerOptions: [
{ answerText: "canada", isCorrect: false },
{ answerText: "USA", isCorrect: false },
{ answerText: "Napoli", isCorrect: true },
{ answerText: "Brazil", isCorrect: false },
],
},
{
questionText: "country",
answerOptions: [
{ answerText: "Paris", isCorrect: false },
{ answerText: "London", isCorrect: false },
{ answerText: "Spain", isCorrect: true },
{ answerText: "Rome", isCorrect: false },
],
},
{
questionText: "color",
answerOptions: [
{ answerText: "dog", isCorrect: false },
{ answerText: "cat", isCorrect: false },
{ answerText: "blue", isCorrect: true },
{ answerText: "tiger", isCorrect: false },
],
},
{
questionText: "currency",
answerOptions: [
{ answerText: "cash", isCorrect: false },
{ answerText: "money", isCorrect: false },
{ answerText: "Pond", isCorrect: true },
{ answerText: "card", isCorrect: false },
],
},
];
const randomQuestions =
questions[Math.floor(Math.random() * questions.length)];
return (
<View style={styles.container}>
<Text style={styles.question}>
{randomQuestions.questionText}
</Text>
<Text style={styles.answer}>
{randomQuestions.answerOptions[0].answerText}
</Text>
<Text style={styles.answer}>
{randomQuestions.answerOptions[1].answerText}
</Text>
<Text style={styles.answer}>
{randomQuestions.answerOptions[2].answerText}
</Text>
<Text style={styles.answer}>
{randomQuestions.answerOptions[3].answerText}
</Text>
</View>
);
};
my purpose is to display a random image meal among a list by cliking a button. I already succeed first steps, but what I want is to replace the previous image generated by another one when I click the button again. Currently, all images generated are overlaped (see enter image description here). I have tried many things like canvas.delete("all"), .destroy() and other stuff like that, but nothing works in my case ...
Could you help me ? Here is my code:
import os, random
from tkinter import *
# WINDOW CREATION
window = Tk()
# WINDOW's setup
window.title("Choosing meal")
window.geometry("500x500")
window.config(background = 'blue')
# FIRST BOX QUESTION:
frame = Frame(window,bg = 'blue')
question_tilte = Label(frame, text = 'Which meal are you going to eat today ?', font = ("Arial",20), bg = 'blue', fg = "white")
question_tilte.pack()
# ADD THE BOX IN THE WINDOW
frame.pack(expand = YES)
# SECOND BOX CREATION TO PUT THE IMAGE IN:
frame2 = Frame(window, bg = 'blue')
# RANDOM MEAL CHOOSE METHOD:
def choosing_meal():
if os.path.exists("meals.txt"):
with open("meals.txt","r") as file:
meals_list = file.readlines()
meal_random_choice = random.choice(meals_list)
print(meal_random_choice)
file.close()
# LISTS
canvas = [canvas1,canvas2,canvas3,canvas4]
for i in range(0,len(meals_list)):
if meal_random_choice == meals_list[i]:
canvas[i].grid(row=2,column=1)
# MEAL BUTTON GENERATOR :
meal_generator_button = Button(frame, text = "Choose a random meal !", font = ("Helvetica",15), bg = 'white', fg = 'blue', command = choosing_meal)
meal_generator_button.pack(pady = 25, fill = X) # gère les dimensions du bouton
# Image pizza
width = 332
height = 234
image1 = PhotoImage(file = "pizza_fresca.png")
canvas1 = Canvas(frame2,width = width, height = height, bg = "blue", bd = 0,highlightthickness=0)
canvas1.create_image(width/2,height/2, image = image1)
# Image sushis
width2 = 292
height2 = 164
image2 = PhotoImage(file = "sushi.png")
canvas2 = Canvas(frame2,width = width2, height = height2, bg = "blue", bd = 0,highlightthickness=0)
canvas2.create_image(width2/2,height2/2, image = image2)
# Image crêpes
width3 = 273
height3 = 185
image3 = PhotoImage(file = "crepes.png")
canvas3 = Canvas(frame2,width = width3, height = height3, bg = "blue", bd = 0,highlightthickness=0)
canvas3.create_image(width3/2,height3/2, image = image3)
# Image tacos
width4 = 279
height4 = 125
image4 = PhotoImage(file = "tacos.png")
canvas4 = Canvas(frame2,width = width4, height = height4, bg = "blue", bd = 0,highlightthickness=0)
canvas4.create_image(width4/2, height4/2, image = image4)
frame2.pack(expand=YES)
# DISPLAY INTERFACE:
window.mainloop()
I'm trying to make two lists with random numbers with random length (they don't have to be the same). Can you tell me why I'm getting this error:
raise ValueError("Sample larger than population or is negative") ValueError: Sample larger than population or is negative
import random
size = random.randint(6,20)
a = list(random.sample(range(1,9),size))
size = random.randint(6,10)
b = list(random.sample(range(1,7),size))
#a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
#b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
c = []
for number in a:
for num in b:
if(number==num):
if not number in c:
c.append(number)
print(a)
print(b)
print(c)
I have a folder with a bunch of memes in it, %AppData%\Memes And I have a file, meme.vbs in my startup folder.
How would I make meme.vbs open a random meme every set amount of minutes?
As the answer here points out, scipy.stats gives biased estimates of skewnesss and kurtosis, which can only be corrected individually with the bias argument:
stats.skew(x, bias=False)stats.kurtosis(x, bias=False)Instead of the data variable x, how do I also enforce unbiasedness in the continuous random variable generators' attribute stats like norm.stats for the normal distribution, listed at the bottom of the documentation:
mean, var, skew, kurt = scipy.stats.norm.stats(loc=0, scale=1, moments=’mvsk’)where arguments can be Mean(‘m’), variance(‘v’), skew(‘s’), and/or kurtosis(‘k’)
I need to create a program that offers to select a movie genre and then randomly opens one movie in the media player from the corresponding folder.
I try to solve this exercise, but Im not sure how to look for the solution. For my current knowledge my program should print out smg, but I get only error .
Error message :
Warning: Undefined variable $x in /in/NVFqg on line 6
Charile bit your finger!
Here is my code :
<?php
function isBitten()
{
if ($x <= 50) { // line 6 //
echo "Charile bit your finger!";
$x = rand(0, 100);
}
else {
echo "Charlie did not bite your finger";
}
}
?>
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Charlie</title>
</head>
<body>
<?php
isBitten();
?>
</body>
</html>
Your help is much appreciated! Thank you!
I have to create a procedure that inserts a row with a foreign key. This key it's a random id from another table that satisfies a condition, if there's no row that satifies it, then it will be a random id from all the ids in the table.
For example I want to create a Person and I want to assing him a car. I want his car to be a random choice from an specific color, but if there's no car from that color, then just choose a random car.
Here is my adapted current code:
DELIMITER //
DROP PROCEDURE IF EXISTS `test`;
CREATE PROCEDURE `test`( `id_color` INT )
BEGIN
# I have auto increment id
INSERT INTO persons(id_color)
VALUES ((
SELECT IF((SELECT COUNT(*) FROM cars WHERE color = id_color) > 0,
SELECT car_id FROM cars WHERE color = id_color ORDER BY RAND() LIMIT 1,
SELECT car_id FROM cars ORDER BY RAND() LIMIT 1)
));
END //
DELIMITER ;
I am getting this error: '2014 Commands out of sync; you can't run this command now'
Don't know if it's possible to do it like that.
I use delimiter because I have to add more stuff.
i want to build a program in Python designed for generating hazard numbers in lotto. For example from 1 to 45 , i want that every number between 1 and 45 ( 1 and 45 included) have the same chance to appear or not, like in real life. What is ( or what are) the appropriate random that can do that or closer to do that (approximation). EXEMPLE value= random.randint(1,46)
Does all the numbers between 1 and 45 have the same chance to appear or to not appear like in reel world ? Does chance in computer world is like chance in reel world, if no , how to make it closer? It is not about duplication. Thank you for helping
I want to make a playlist generator, I have a list containing different songs and I want to generate a random numbered list from it containing only 10 items, and this is the code I tried:
import random
a = ['Bruised and Scarred - Mayday Parade',
'Miracles in December - EXO',
'All Too Well - Taylor Swift',
'Gravity - Sara Bareilles',
'Perfectly Perfect - Simple Plan',
'Welcome To The Black Parade - My Chemical Romance',
'Everything Has Changed - Taylor Swift',
'Champagne - Taylor Swift',
'Piece of Your Heart - Mayday Parade',
'Blame It On The Rain - He Is We',
'Sad Song - We The Kings',
'Give It All - He Is We',
]
for x in range(1, 11):
for y in random.sample(a, k=10):
print(str(x) + y)
but I got this output:
1Bruised and Scarred - Mayday Parade
1All Too Well - Taylor Swift
1Blame It On The Rain - He Is We
1Everything Has Changed - Taylor Swift
1Give It All - He Is We
1Miracles in December - EXO
1Perfectly Perfect - Simple Plan
1Gravity - Sara Bareilles
1Sad Song - We The Kings
1Piece of Your Heart - Mayday Parade
2All Too Well - Taylor Swift
2Bruised and Scarred - Mayday Parade
2Blame It On The Rain - He Is We
2Perfectly Perfect - Simple Plan
2Champagne - Taylor Swift
2Everything Has Changed - Taylor Swift
2Piece of Your Heart - Mayday Parade
2Miracles in December - EXO
2Welcome To The Black Parade - My Chemical Romance
2Give It All - He Is We
3Bruised and Scarred - Mayday Parade
3Gravity - Sara Bareilles
3Welcome To The Black Parade - My Chemical Romance
3All Too Well - Taylor Swift
3Perfectly Perfect - Simple Plan
3Sad Song - We The Kings
3Champagne - Taylor Swift
3Everything Has Changed - Taylor Swift
3Piece of Your Heart - Mayday Parade
3Give It All - He Is We
4Everything Has Changed - Taylor Swift
4Blame It On The Rain - He Is We
4Piece of Your Heart - Mayday Parade
4Gravity - Sara Bareilles
4Bruised and Scarred - Mayday Parade
4Welcome To The Black Parade - My Chemical Romance
4Miracles in December - EXO
4Sad Song - We The Kings
4Give It All - He Is We
4Perfectly Perfect - Simple Plan
5Gravity - Sara Bareilles
5Blame It On The Rain - He Is We
5Perfectly Perfect - Simple Plan
5Champagne - Taylor Swift
5Everything Has Changed - Taylor Swift
5Bruised and Scarred - Mayday Parade
5Welcome To The Black Parade - My Chemical Romance
5All Too Well - Taylor Swift
5Give It All - He Is We
5Miracles in December - EXO
6Bruised and Scarred - Mayday Parade
6Champagne - Taylor Swift
6Everything Has Changed - Taylor Swift
6Miracles in December - EXO
6Welcome To The Black Parade - My Chemical Romance
6Sad Song - We The Kings
6All Too Well - Taylor Swift
6Gravity - Sara Bareilles
6Give It All - He Is We
6Perfectly Perfect - Simple Plan
7Gravity - Sara Bareilles
7Sad Song - We The Kings
7Everything Has Changed - Taylor Swift
7Welcome To The Black Parade - My Chemical Romance
7Piece of Your Heart - Mayday Parade
7Blame It On The Rain - He Is We
7Bruised and Scarred - Mayday Parade
7Give It All - He Is We
7Champagne - Taylor Swift
7All Too Well - Taylor Swift
8Sad Song - We The Kings
8Gravity - Sara Bareilles
8Champagne - Taylor Swift
8Blame It On The Rain - He Is We
8Miracles in December - EXO
8Give It All - He Is We
8Welcome To The Black Parade - My Chemical Romance
8Bruised and Scarred - Mayday Parade
8Piece of Your Heart - Mayday Parade
8Everything Has Changed - Taylor Swift
9Gravity - Sara Bareilles
9Champagne - Taylor Swift
9Bruised and Scarred - Mayday Parade
9Blame It On The Rain - He Is We
9Piece of Your Heart - Mayday Parade
9Everything Has Changed - Taylor Swift
9Sad Song - We The Kings
9Welcome To The Black Parade - My Chemical Romance
9All Too Well - Taylor Swift
9Perfectly Perfect - Simple Plan
10Champagne - Taylor Swift
10Blame It On The Rain - He Is We
10Perfectly Perfect - Simple Plan
10Miracles in December - EXO
10Give It All - He Is We
10Piece of Your Heart - Mayday Parade
10Everything Has Changed - Taylor Swift
10Welcome To The Black Parade - My Chemical Romance
10Bruised and Scarred - Mayday Parade
10Sad Song - We The Kings
I want it to contain only 10 items, but I got way too many, could please help me (Sorry for my bad english)
I want to generate two distinct sets of correlated ordinal variables (ranging from 1 to 7). The first set will be represented by x1, x2 and x3 whereas the second set will be represented by x4, x5 and x6. I want the first set of variables (x1, x2 and x3) to be moderately correlated (e.g., 0.4) whereas the second set of variables (x4, x5 and x6) to be strongly correlated (e.g., 0.7). At the same time, I want the correlation between these two sets of variables to be weak (e.g., 0.10) with each other.
I need to create a function that returns a random number from 1 to x and I have to generate y of them. Results must be in HashMap. At this moment the user can pass x and y values, code generates y random numbers from 1 to x but I totally don't know how to insert results in HashMap that is created.
EDIT: About HashMap, key = number from 1 to x, value = amount of generated numbers
private static BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
public static void main (String[] args) throws IOException {
System.out.println("Insert x value: ");
int x = Integer.parseInt(bufferedReader.readLine());
System.out.println("Insert y value: ");
int y = Integer.parseInt(bufferedReader.readLine());
HashMap<Integer, Integer> map = new HashMap <Integer, Integer>();
Random random = new Random();
for (int i = 1; i <= y; i++) {
int value = 1 + random.nextInt(x);
System.out.println(value);
}
}
How do I give color red to random element with id "hello"?
<h1 id="hello">a</h1> <h1 id="hello">b</h1> <h1 id="hello">c</h1>
import random
rows, cols = (24, 24)
node = [[0]*cols]*rows
def main():
for i in range(23):
while True:
randx = random.randint(0,23)
randy = random.randint(0,23)
if node[randx][randy] == 0:
node[randx][randy] = 1
break
print(node)
main()
For some reason it returns a matrix with all of the rows looking the same. for example it might produce:
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0], ...
the whole matrix would look like that. (I have just taken the first 5 rows to demonstrate) I am trying to make it change individual vertices in the matrix, not entire rows.
import random
rows, cols = (24, 24)
node = [[0]*cols]*rows
def main():
for i in range(23):
while True:
randx = random.randint(0,23)
randy = random.randint(0,23)
if node[randx][randy] == 0:
node[randx][randy] = 1
break
print(node)
main()
For some reason it returns a matrix with all of the rows looking the same. for example it might produce:
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0],
[1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0], ...
the whole matrix would look like that. (I have just taken the first 5 rows to demonstrate) I am trying to make it change individual vertices in the matrix, not entire rows.
Here is the 'items' table, containing more than 10 rows:
+-----+-----------+-----------+----------+
| id | item_name | category | quantity |
+=====+===========+===========+==========+
| 3 | item33 | category1 | 5 |
+-----+-----------+-----------+----------+
| 2 | item52 | category5 | 1 |
+-----+-----------+-----------+----------+
| 1 | item46 | category1 | 3 |
+-----+-----------+-----------+----------+
| 4 | item11 | category3 | 2 |
+-----+-----------+-----------+----------+
| ... | ... | ... | ... |
+-----+-----------+-----------+----------+
Values in the 'items' column are unique, the ones in the 'category' columnt - aren't unique.
The task is:
So, the ordering table (after #2 sub-task) should look like that:
+-----+-----------+-----------+----------+
| id | item_name | category | quantity |
+=====+===========+===========+==========+
| 2 | item52 | category5 | 1 |
+-----+-----------+-----------+----------+
| 4 | item11 | category3 | 2 |
+-----+-----------+-----------+----------+
| 1 | item46 | category1 | 3 |
+-----+-----------+-----------+----------+
| ... | ... | ... | ... |
+-----+-----------+-----------+----------+
I know how to exclude duplicates for categories:
SELECT min(id) as id, category
FROM items
GROUP BY category
But I don't know how to order it by the quantity. If I try to add 'quantity' to the 'select' line and then make 'ORDER BY quantity', I get the error: "column "quantity" must appear in the GROUP BY clause or be used in an aggregate function".
If there is a way to add this 'quantity' column to the data output (the value in this column should correlate with the resulting 'id' value (i.e. "min(id)"))? And then do ordering and picking rows...
My function should randomly insert a user-chosen number of 1 into my matrix. The difficulty lies in the fact that if a cell contains a 1 the cells around it must be set to 0. Why my code print a wrong number of 1? In the code below I had thought to first set the entire matrix to 0, then randomly generate a cell to be set to 1. Then, check if the cells around it are 0, otherwise set them to 0. All this is done until the number m entered by the user becomes 0 (every time a cell is set to 1, m is decremented and every time a cell equal to 1 is reset to 0 m it is incremented). Furthermore, in order not to generate errors, the check is done considering the fact that the outermost cells cannot check on nonexistent cells.This is my (bad) code. Can anyone tell me why the print is wrong?
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main (void) {
int n, m;
printf("Enter square matrix size: ");
scanf("%d",&n);
int matrix[n][n];
printf("Enter number of 1 cells: ");
scanf("%d",&m);
int a[n][n];
for (int i = 0; i < n; i++){
for (int j = 0; j < n; j++){
a[i][j] = 0;
}
}
while (m >= 0){
int k = rand() % n;
int l = rand() % n;
a[k][l] = 1;
if (k > 0) {
if (a[k-1][l] == 1){
a[k-1][l] = 0;
m++;
}
if (l > 0 && a[k-1][l-1] == 1){
a[k-1][l-1] = 0;
m++;
}
if (l < 4 && a[k-1][l+1] == 1){
a[k-1][l+1] = 0;
m++;
}
}
if (k < 4){
if (a[k+1][l] == 1){
a[k+1][l] = 0;
m++;
if(l<4 && a[k+1][l+1] == 1){
a[k+1][l+1] = 0;
m++;
}
}
}
if (l > 0 && a[k][l-1] == 1){
a[k][l-1] = 0;
m++;
}
if (l<4 && a[k][l+1] == 1){
a[k][l+1] = 0;
m++;
}
m--;
}
for (int i = 0; i < n; i++){
for (int j = 0; j < n; j++){
printf("\t%d", a[i][j]);
}
puts("");
}
return 0;
}
Lets say I have a dictionary of lists like this:
lists= {'pet': ["dog", "cat", "parrot"],
'amount': [1,2,3],
'food': ["canned", "dry"]}
And I want to pick one element from each list, randomly, so the result is like this:
{'amount': 2, 'food': 'canned', 'pet': 'cat'}
Which would the simplest way to achieve it using Python?
I have to create a matrix with random numbers 0 or 1. The problem is that the number of 1 must be entered by the user and the 1 cells must follow a rule: if a cell is 1, the eight cells around it must necessarily be 0.
Here an example of correct output:
User entered: 8
1 0 0 1 0 0
0 0 0 0 0 1
0 1 0 0 0 0
0 0 0 0 0 1
1 0 1 0 0 0
Here an example of not correct output:
User entered: 8
1 1 0 1 0 0
0 0 0 0 0 1
0 1 0 1 0 0
0 0 0 0 0 1
1 0 1 0 0 0
This is not correct because at line 1 there are two 1 close.
My biggest problem is that I can't figure out how to insert 1s randomly since the number of 1s is entered by the user. Any advice?
Alright, So I've seen multiple ways to allow python programs to write to a specified txt, but none of the ones I've seen would be compatible with my program.
It's a number/password generator that can print anywhere from one line, to actual billions of lines of strings. But, the issue is that there is some dialog and options before it prints out the selected strings.
How do I make it so it only records and writes a certain part to a txt, Instead of the whole thing.
Here's a link to the github, And attached is the program. https://github.com/JasonDerulo1259/JasonsGenerator
Or alternatively, here is the raw code:
import time
import random
from random import randint
from random import choices
import sys
chars= ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","$","%","&","(",")","*",",","-",".","/",":",";","<","=",">","?","@","[","]","^","_","`","{","|","}","~","0","1","2","3","4","5","6","7","8","9"]
def massprint():
againagain = int(times)
even=0
odd=1
consec=0
rand=0
while againagain >= 0:
time.sleep(float(speed))
againagain -= 1
if eocr=="e":
print(even,flush=True, end=inbetween)
even=even+2
elif eocr=="o":
print(odd,flush=True, end=inbetween)
odd=odd+2
elif eocr=="c":
print(consec,flush=True, end=inbetween)
consec=consec+1
elif eocr=="r":
print(random.randint(int(randlowcap),int(randhighcap)),flush=True, end=inbetween)
elif eocr=="p":
password=random.sample(chars,letters)
divider = ""
password = divider.join(password)
print(password,flush=True, end=inbetween)
elif eocr=="pr":
password=choices(chars, k=letters)
divider = ""
password = divider.join(password)
print(password,flush=True, end=inbetween)
else:
print("Unrecognized. Type either e, o or c or r")
if againagain<=1:
print(" \n")
print("even, odd, consecutive, random, password or password-repeat ")
eocr=input("e/o/c/r/p/pr ")
time.sleep(0.5)
times=input("How many times/strings? ")
againagain=int(times)
time.sleep(0.5)
speed=input("What speed should it print, \nAnswer in seconds. (0.02 Is Normal-ish speed) ")
time.sleep(0.5)
inbetween=input("What should be inbetween each string (eg: space, comma, newline (/n).). \nAnswer with the string inbetween, Not the name of it \n(write ' ' , not 'space') ")
if inbetween=="/n":
inbetween="\n"
else:
print("")
if eocr=="e":
print("Alright, The final number will be",str(againagain * 2))
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
massprint()
time.sleep(1)
print("Done!")
else:
print("\n")
elif eocr=="o":
print("Alright, The final number will be",str(againagain * 2+1))
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
massprint()
time.sleep(1)
print("Done!")
else:
print("\n")
elif eocr=="c":
print("Alright, The final number will be",str(againagain))
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
massprint()
time.sleep(1)
print("Done!")
elif eocr=="r":
time.sleep(0.5)
randhighcap=input("And what do you want the highest random number to be? ")
time.sleep(0.5)
randlowcap=input("And what do you want the lowest random number to be? ")
time.sleep(0.5)
print("Alright, It will print",str(againagain),"random numbers \nWith a high cap of",randhighcap,"\nAnd a low cap of",randlowcap)
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
massprint()
time.sleep(1)
print("Done!")
else:
print("\n")
elif eocr=="p":
letters=int(input("Alright, How many characters should the password have? (no higher than 88) "))
time.sleep(0.5)
print("Okay, It will print",times,"passwords,\nEach with",letters," NON-REPEATING characters each")
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
times=int(times)-1
times=str(times)
massprint()
time.sleep(1)
print("Done!")
elif eocr=="pr":
letters=int(input("Alright, How many characters should the password have? "))
time.sleep(0.5)
print("Okay, It will print",times,"passwords,\nEach with",letters," REPEATING characters each")
varcontinue=input("Is this okay? (y/n) ")
if varcontinue=="y":
print(" ")
times=int(times)-1
times=str(times)
massprint()
time.sleep(1)
print("Done!")
else:
print("Restart and input 'e' or 'o' or 'c' or 'r' or 'p'")
print("Press the Enter key to exit")
exit1=input(" ")
exit()
I'm trying to create an array list using random numbers. But sometimes I get a zero in results. I do not understand why.
I'm grateful if anyone can explain.
int[] number = new int[6];
Random rnd = new Random();
for (int i = 0; i < number.Length; i++)
{
int random = rnd.Next(1, 26);
if (!number.Contains(random))
{
number[i] = random;
}
}
foreach (int nr in number)
{
Console.Write("|" + nr + "|");
}
//results
|6||12||0||22||25||11|
I want to use Python to output a random line from an external .txt file. In this .txt file there are several sentences. But each of them is in a different line.
My approach is to generate a random line number:
import random
line = random.randint(1, max_line)
#max_line stands for the number of lines in the .txt file.
and then to reproduce this line using print().
I've already looked around a bit, but haven't found anything yet regarding outputting the sentence of the line. Any idea how I could make this work?
I have made a snake game but the food sometimes generates inside the snake tail the solution I came up with was this.
def Food(snake_List, food_placed, foodX, foodY):
while food_placed == False:
foodX = round(random.randrange(0,display_width))
foodY = round(random.randrange(0,display_height))
food_pos = [foodX, foodY]
food_placed = True
return foodX
return foodY
if food_pos in snake_List:
food_placed = False
but this doesnt work. Here is the full code
import pygame
import time
import random
pygame.init()
display_width = 600
display_height = 600
display = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption("Snake")
pureblue = (0,0,255)
purered = (255,0,0)
puregreen = (0,255,0)
red = (125,25,25)
green = (25,125,25)
white = (255,255,255)
black = (1,1,1)
grey = (20,20,20)
darkgrey = (15,15,15)
clock = pygame.time.Clock()
snake_block = 60
snake_speed = 5
font_style = pygame.font.SysFont(None, 50)
food_placed = False
foodX = 0
foodY = 0
def user_snake(snake_block, snake_List):
for x in snake_List:
pygame.draw.rect(display,green,[x[0],x[1], snake_block, snake_block])
def drawGrid(surf):
blockSize = snake_block
surf.fill(grey)
for x in range(display_width):
for y in range(display_height):
rect = pygame.Rect(x*blockSize, y*blockSize,blockSize, blockSize)
pygame.draw.rect(surf,darkgrey, rect, 1)
grid_surf = pygame.Surface(display.get_size())
drawGrid(grid_surf)
def Food(snake_List, food_placed, foodX, foodY):
while food_placed == False:
foodX = round(random.randrange(0,display_width))
foodY = round(random.randrange(0,display_height))
food_pos = [foodX, foodY]
food_placed = True
return foodX
return foodY
if food_pos in snake_List:
food_placed = False
def message(msg, colour):
text = font_style.render(msg, True, colour)
display.blit(text, [0, display_height/4])
def SnakeGameLoop(foodX, foodY):
game_over = False
game_close = False
X = display_width/2
Y = display_height/2
X_change = 0
Y_change = 0
snake_List = []
Length_of_snake = 1
Food(snake_List, food_placed, foodX, foodY)
while not game_over:
while game_close == True:
message("You Lost! Press Q-Quit or C-Play Again", purered)
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
game_over = True
game_close = False
if event.key == pygame.K_c:
SnakeGameLoop(foodX, foodY)
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
X_change = -snake_block
Y_change = 0
elif event.key == pygame.K_RIGHT:
X_change = snake_block
Y_change = 0
elif event.key == pygame.K_UP:
X_change = 0
Y_change = -snake_block
elif event.key == pygame.K_DOWN:
X_change = 0
Y_change = snake_block
if event.key == pygame.K_a:
X_change = -snake_block
Y_change = 0
elif event.key == pygame.K_d:
X_change = snake_block
Y_change = 0
elif event.key == pygame.K_w:
X_change = 0
Y_change = -snake_block
elif event.key == pygame.K_s:
X_change = 0
Y_change = snake_block
if X >= display_width or X < 0 or Y >= display_height or Y < 0:
game_close = True
X += X_change
Y += Y_change
snake_Head = []
snake_Head.append(X)
snake_Head.append(Y)
snake_List.append(snake_Head)
print(snake_List)
if len(snake_List) > Length_of_snake:
del snake_List[0]
for x in snake_List[:-1]:
if x == snake_Head:
game_close = True
display.blit(grid_surf, (0,0))
pygame.draw.rect(display, red, [foodX, foodY, snake_block, snake_block])
user_snake(snake_block,snake_List)
pygame.display.update()
if X == foodX and Y == foodY:
foodX = round(random.randrange(0, display_width - snake_block) / snake_block) * snake_block
foodY = round(random.randrange(0, display_height - snake_block) / snake_block) * snake_block
Length_of_snake += 1
clock.tick(snake_speed)
pygame.quit()
quit()
SnakeGameLoop(foodX, foodY)
Random.seed() Is less secure than secrets, but I can't find any documentation on using a seed with secrets? or is random.seed just as fine?
Alright, I have a password generator, The code I have is this:
password=random.sample(chars,letters) #chars is a list of Characters (symbols,letters,numbers) and letters is how many letters are in the password
divider = ""
password = divider.join(password)
print(password,flush=True, end=inbetween) #inbetween is where the user can choose what character seperates the passwords (it can print multiple passwords)
The issue I have is that random.sample only selects unique characters. Is there an alternative function that does the same as random.sample, but can select non-unique characters from the list.
By the way, Here is the values for the variable chars:
chars= ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","$","%","&","(",")","*",",","-",".","/",":",";","<","=",">","?","@","[","]","^","_","`","{","|","}","~","0","1","2","3","4","5","6","7","8","9"]
I need to create a makeRandom function that accepts a range of numbers as an array, where the first number is the beginning of the range, the second is the end including this number in the range. The result of this function should be a function, and the call returns a random number from the range. The numbers returned must be unique. If I run out of unique numbers, have to return null.
It should work like this :
const getRandom = makeRandom([1, 5]);
getRandom() === 3
getRandom() === 4
getRandom() === 5
getRandom() === 2
getRandom() === 1
getRandom() === null
getRandom() === null
So I tried :
function makeRandom(numbers) {
return () => {
let randNumber = Math.floor(Math.random() * numbers.length);
for (let i = 0; i < numbers.length; i++) {
randNumber += numbers[i];
if (randNumber === numbers[i]) {
return true;
}
if (randNumber === numers[i].length) {
return true;
}
}
if (!numbers) {
return null;
}
};
}
But it's not working. So what's the best way to do this?
I have two Gaussian noise generators, from MATLAB's randn() function:
noise1 = randn(1,100000)
noise2 = randn(1,100000)
I'm finding the points where they are equal. For this, I add 100 points in between each point:
mehvec = linspace(1,n,100*(n-1));
meh1 = [];
meh2 = [];
for i = 2:1:n
meh1 = [meh1, linspace(noise1(i-1),noise1(i),100)];
meh2 = [meh2, linspace(noise2(i-1),noise2(i),100)];
end
Now, I scan each point, to see if there's a sign change in the difference between the two noises, where the sign change occurs, and what the noise value is when they're equal:
diff = meh1 - meh2;
crossvec = [];
valuevec = [];
for i = 2:1:length(mehvec)
if diff(i-1)>=0 && diff(i)<0 || diff(i-1)<0 && diff(i)>=0
crossvec = [crossvec,i];
valuevec = [valuevec,noise1(i)];
end
end
There is a problem in the Gaussianity, in the vector where the instantaneous noises are equal. Where is it coming from?
Here's the normal-probability plot of the values where they're equal. It should be a straight line (which indicates Gaussianity), but it isn't.
I am making snake using pygame for a school challenge and it is functional and working but the problem I have is that sometimes when the snake eats the food the new food spawns inside the snake's tail. The reason I'm not sure of how to change this is because the way it generates the random placement of the food is using randomrange on a grid, and I do not know of anyway to exclude the snakes tail from this range/ regenerate it if it does spawn within there. Is this a fundemental problem with using random.randrange or is there a simple fix while retaining most of the code. Highlighted code top two lines below
foodX = round(random.randrange(0,display_width-snake_block)/snake_block)*snake_block
foodY = round(random.randrange(0,display_height-snake_block)/snake_block)*snake_block
import pygame
import time
import random
pygame.init()
display_width = 600
display_height = 600
display = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption("Snake")
pureblue = (0,0,255)
purered = (255,0,0)
puregreen = (0,255,0)
red = (125,25,25)
green = (25,125,25)
white = (255,255,255)
black = (1,1,1)
grey = (20,20,20)
darkgrey = (15,15,15)
clock = pygame.time.Clock()
snake_block = 30
snake_speed = 10
font_style = pygame.font.SysFont(None, 50)
def user_snake(snake_block, snake_List):
for x in snake_List:
pygame.draw.rect(display,green,[x[0],x[1], snake_block, snake_block])
def drawGrid(surf):
blockSize = snake_block
surf.fill(grey)
for x in range(display_width):
for y in range(display_height):
rect = pygame.Rect(x*blockSize, y*blockSize,blockSize, blockSize)
pygame.draw.rect(surf,darkgrey, rect, 1)
grid_surf = pygame.Surface(display.get_size())
drawGrid(grid_surf)
def message(msg, colour):
text = font_style.render(msg, True, colour)
display.blit(text, [0, display_height/4])
def SnakeGameLoop():
game_over = False
game_close = False
X = display_width/2
Y = display_height/2
X_change = 0
Y_change = 0
snake_List = []
Length_of_snake = 1
foodX = round(random.randrange(0,display_width-snake_block)/snake_block)*snake_block
foodY = round(random.randrange(0,display_height-snake_block)/snake_block)*snake_block
while not game_over:
while game_close == True:
message("You Lost! Press Q-Quit or C-Play Again", purered)
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
game_over = True
game_close = False
if event.key == pygame.K_c:
SnakeGameLoop()
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
X_change = -snake_block
Y_change = 0
elif event.key == pygame.K_RIGHT:
X_change = snake_block
Y_change = 0
elif event.key == pygame.K_UP:
X_change = 0
Y_change = -snake_block
elif event.key == pygame.K_DOWN:
X_change = 0
Y_change = snake_block
if event.key == pygame.K_a:
X_change = -snake_block
Y_change = 0
elif event.key == pygame.K_d:
X_change = snake_block
Y_change = 0
elif event.key == pygame.K_w:
X_change = 0
Y_change = -snake_block
elif event.key == pygame.K_s:
X_change = 0
Y_change = snake_block
if X >= display_width or X < 0 or Y >= display_height or Y < 0:
game_close = True
X += X_change
Y += Y_change
display.blit(grid_surf, (0,0))
pygame.draw.rect(display, red, [foodX, foodY, snake_block, snake_block])
snake_Head = []
snake_Head.append(X)
snake_Head.append(Y)
snake_List.append(snake_Head)
if len(snake_List) > Length_of_snake:
del snake_List[0]
for x in snake_List[:-1]:
if x == snake_Head:
game_close = True
user_snake(snake_block,snake_List)
pygame.display.update()
if X == foodX and Y == foodY:
foodX = round(random.randrange(0, display_width - snake_block) / snake_block) * snake_block
foodY = round(random.randrange(0, display_height - snake_block) / snake_block) * snake_block
Length_of_snake += 1
clock.tick(snake_speed)
pygame.quit()
quit()
SnakeGameLoop()
We want to know whether leaf length depends on the amount of nutrients in the soil or by the family it originates from. We collected 10 seeds of the parent plant (i.e. the “family”) of which 5 are raised in the lab under high levels of available nutrients (“rich”) and 5 in a nutrient poor environment (“poor”). We have data from 10 such families. It is a split-plot design.
Normally we would add family as a random factor in a mixed model, but now we are also interested in the family effect as well. Can we include family both as a fixed factor and a random factor in our model? (R in RStudio)
model1 <- lmer(length~soil + FAM + (1|FAM) + (1|FAM:soil), data)
model2 <- lmer(length~soil + FAM + (1|FAM:soil), data)
Thanks in advance!
ps: it is a statistical exercise, the design cannot be changed
This is a random math problem generator program.
The problem is my input answer and the real answer keeps returning 0.
What's the problem here? I can't find out why.
Here's the code step by step...
import libraries
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
calling functions
int getRandNum(int i, int lower, int upper, int randNum);
int getRandOp(int i, int opSel, char randOp);
int getRealAnswer(char randOp, int randNum1, int randNum2, int realAnswer);
void showQuestion(int i, int randNum1, int randOp, int randNum2, int realAnswer, int
userAnswer);
int getUserAnswer(int userAnswer);
void answerCompare(int realAnswer, int userAnswer);
main() function
int main(void) // main fucntion
{
int i;
int randNum1, randNum2;
int userAnswer, realAnswer;
char randOp;
srand(time(NULL));
for (i = 1; i <= 5; i++)
{
showQuestion(i, randNum1, randOp, randNum2, realAnswer, userAnswer);
getUserAnswer(userAnswer);
getRealAnswer(randNum1, randNum2, randOp, realAnswer);
answerCompare(realAnswer, userAnswer);
printf("Real Answer = %d User Answer = %d\n\n", realAnswer, userAnswer);
}
return 0;
}
getRandNum() function
int getRandNum(int i, int lower, int upper, int randNum) // get random number within range using rand() function
{
lower = (20 * (i - 1)) + 1;
upper = 20 * I;
randNum = (rand() % (upper - lower + 1)) + lower;
return randNum;
}
getRandOp() function
int getRandOp(int i, int opSel, char randOp) // get random operator within list using rand() function
{
char opList[4] = {'+', '-', '*', '/'};
opSel = rand() % 4;
randOp = opList[opSel];
return randOp;
}
getRealAnser() function
int getRealAnswer(char randOp, int randNum1, int randNum2, int realAnswer) // get real answer of the problem (problematic part: always returns 0)
{
switch (randOp)
{
case '+':
realAnswer = randNum1 + randNum2;
case '-':
realAnswer = randNum1 - randNum2;
case '*':
realAnswer = randNum1 * randNum2;
case '/':
realAnswer = randNum1 / randNum2;
default:
break;
}
return realAnswer;
}
showQuestion() function
void showQuestion(int i, int randNum1, int randOp, int randNum2, int realAnswer, int userAnswer) // print out math question
{
int randNum, opSel, lower, upper;
printf("##### Question Number %d #####\n", I);
randNum1 = getRandNum(i, lower, upper, randNum);
randOp = getRandOp(i, opSel, randOp);
randNum2 = getRandNum(i, lower, upper, randNum);
realAnswer = getRealAnswer(randNum1, randNum2, randOp, realAnswer);
printf("%d %c %d = ", randNum1, randOp, randNum2);
}
getUserAnswer() function
int getUserAnswer(int userAnswer) // user input answer of the problem (problematic part: always returns 0)
{
userAnswer = -1;
userAnswer = scanf("%d", &userAnswer);
return userAnswer;
}
answerCompare() function
void answerCompare(int realAnswer, int userAnswer) // compare user answer and real answer of the problem and print result
{
if (userAnswer == realAnswer)
{
printf("You are correct!\n");
}
else if (userAnswer != realAnswer)
{
printf("You are wrong!\n");
}
else
{
printf("Error! Invalid Comparison!\n");
}
}
I need a function that generates a random boolean with a given probability from 1 to 100.
I've tried with this:
int randProb(int chance, int min, int max) {
int random = rand();
if (random < (RAND_MAX) / chance / 10)
return -(random % (max - min + 1) + min);
else
return (random % (max - min + 1) + min);
}
but when I call it, passing 1 as a probability
randProb(1, 0, 1)
sometimes it returns 1, sometimes -1, and sometimes 0.
and when I call it, passing 100 as a probability
randProb(100, 0, 1)
sometimes returns 0 and sometimes 1, as it should work, with a probability of 100 it should always return 1.
Note time is initialized with this:
time_t t;
srand((unsigned) time(&t));
I have a table with a column of type nchar(16) that is automatically filled with random characters generated by setting the default value of the column to dbo.randomtext((16)) (a scalar function). There will be about 1M records in the table.
I know that the likelihood of getting non-unique values is low, but is there some way to ensure that this does not happen and the column is really unique?
What will happen if I define the column as UNIQUE and the random text generated is not unique?
I am using SQL Server 2016 Standard edition.
I want to do a quick write test of a SSD (that I bought on ebay).
I want to write a stream of pseudo random data and then read them back and compare.
Something like ("dd" omitted for clarity) :
random $seed > /dev/nvme0n1
random $seed | cmp - /dev/nvme0n1
... with maybe some flags to control "initstate" and buffer size
I'm trying to make roll command that generates a random number based on user input.
For example:
user:
!roll 1d100
bot:Your output is 65(or some other random number)
I have tried a couple of different things, but none of them have worked, the output was "NaN".
My nearest code was:
const argsminus8 = message.content.slice(prefix.length).trim().split(/ +/g);
const commandminus8 = argsminus8.shift().toLowerCase();
if(message.content.startsWith (prefix + `random-number`)) {
function getRandomIntInclusive(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
if (!argsminus8.length) {
return message.channel.send(`What roll am I supposed to make?`);
}
const embed = new MessageEmbed()
.setTitle('Number:')
.setDescription( getRandomIntInclusive())
.setColor(0x0099ff)
.setTimestamp()
message.channel.send({ embed });
}
I've got an array of random messages, but I want it so that it doesn't pick a message that has already been picked and then reset once all messages have been picked.
public void showRandomMsg(){
shuffleMsg();
answer1.setText((messageArray[0].getmAns()));
message2.setText((messageArray[0].getmMsg()));
toyView1.setImageResource(messageArray[0].getmImage());
}
Messages m01 = new Messages(R.drawable.crown1, "Mesage 0 A","Message 0 B");
Messages m02 = new Messages(R.drawable.crown2,"Mesage 1 A","Message 1 B");
Messages m03 = new Messages(R.drawable.crown3,"Mesage 2 A","Message 2 B");
Messages m04 = new Messages(R.drawable.crown4,"Mesage 3 A","Message 3 B");
Messages m05 = new Messages(R.drawable.crown5,"Mesage 4 A","Message 4 B");
Messages [] messageArray=new Messages[]{
m01, m02, m03, m04, m05
};
public void shuffleMsg(){
Collections.shuffle(Arrays.asList(messageArray));
}
I am trying to repeatedly add columns to a dataframe using random sampling from another dataframe.
My first dataframe with the actual data to be sampled from looks like this
df <- data.frame(cat = c("a", "b", "c","a", "b", "c"),
x = c(6,23,675,1,78,543))
I have another dataframe like this:
df2 <- data.frame(obs =c(1,2,3,4,5,6,7,8,9,10),
cat=c("a", "a", "a", "b", "b", "b", "c","c","c", "c"))
I want to add 1000 new columns to df2 that randomly samples from df, grouped by cat. I figure out a (probably very amateurish) way of doing this once, by using slice_sample() to make a new dataframe sample1 with a random sample of df, and then merging sample1 with df2.
df <- df %>%
group_by(cat)
df2 <- df2 %>%
group_by(cat)
sample1 <- slice_sample(df, preserve = T, n=3, replace = T )
sample1 <- sample1 %>%
ungroup() %>%
mutate(obs=c(1:9)) %>%
select(-cat)
df3 <- merge(df2,sample1, by= "obs")
Now, I want to find a way to repeat this 1000 times, to end up with df3 with 1000 columns (x1,x2,x3 etc.)
I have looked into repeat loops, but haven't been able to figure out how to make the above code work inside the loop.
I'm currently working on a program in Haskell (which I am very new to) where I need to randomly generate co-ordinates and use them around the program in several places, however, I don't want to be threading IO around the whole program, nor the seed. I saw this link where they use num <- randomIO :: IO Float however I keep getting - Couldn't match type `IO' with `[]' Expected type: [Float]. I in theory need the co-ordinates to be integer values, so if there is a better way of doing it that would be great! The full stack is below:
Couldn't match type `IO' with `[]'
Expected type: [Float]
Actual type: IO Float
* In a stmt of a 'do' block: y <- randomIO :: IO Float
Edit - here is a minimum reproducible example! I'm using stack as well.
import Data.List
import System.Random
main :: IO ()
main =
do
xt <- randomIO :: IO Float
x <- round ((xt) * (5))
putStrLn x
I have a df with data, and a name for each row. I would like the names to be replaced by a random string/number, but with the same string, when a name appears twice or more (eg. for Adam and Camille below).
df <- data.frame("name" = c("Adam", "Adam", "Billy", "Camille", "Camille", "Dennis"), "favourite food" = c("Apples", "Banana", "Oranges", "Banana", "Apples", "Oranges"), stringsAsFactors = F)
The expected output is something like this (it is not important how the random string looks or the lenght of it)
df_exp <- data.frame("name" = c("xxyz", "xxyz", "xyyz", "xyzz", "xyzz", "yyzz"), "favourite food" = c("Apples", "Banana", "Oranges", "Banana", "Apples", "Oranges"), stringsAsFactors = F)
I have tried several random replacement functions in R, however each of them creates a random string for each row in data, and not an individual one for duplicates, eg. stri_rand_strings:
library(stringi)
library(magrittr)
library(tidyr)
library(dplyr)
df <- df %>%
mutate(UniqueID = do.call(paste0, Map(stri_rand_strings, n=6, length=c(2, 6),
pattern = c('[A-Z]', '[0-9]'))))
I am making a space game with planets that are randomly generated and I need their atmospheres to be made up of random amounts of different elements. So the thing is that I want the elements to be percentages of the complete atmosphere, an example: oxygen = 30, nitrogen = 20, carbondioxide = 50, hydrogen = 0. All these values should be completely randomized and the sum of them all has to be 100.
I basically want to fill a container to the top with random amounts of set elements, but I don't know how to randomize all of the variables and end up with a fixed sum.
This is my first time submitting anything to StackOverflow so please let me know if there is anything I need to clarify, I've been stuck on this issue for so long without finding any answers so I would appreciate any help, thanks :)
(I am using c# in unity in case that makes a difference)
I am trying to use random/3
random(+L:int, +U:int, -R:int)
Is there any thing that can be used for representing infinity?
For Example:
random(0, Infinity, Random_Number).
Is it possible to achieve this with random? Or is there any other simple alternative?
P.S. I have made clpfd programs where I have used sup ( Supremum ), but I am not working with clpfd.
i am working on very simple project for my school assignment. So it's a house rent site. Everything seems fine but i want create an automatically invoice like "INV0001" but i dont know how to do that. maybe you guys can help me fix my controller
this is my controller
public function storeSewa(Request $request){
if ($request->edit=='false') {
$newdata = new Sewa;
} else {
$newdata = Sewa::find($request->id);
if ($newdata) {
//
}else {
$newdata = new Sewa;}}
$newdata->invoice = 'INV/'//idk, how?
$newdata->penyewa_id = $request->penyewa_id;
$newdata->kamar_id = $request->kamar_id;
$newdata->tanggal_masuk = $request->tanggal_masuk;
$newdata->tanggal_keluar = $request->tanggal_keluar;
$newdata->durasi = $request->durasi;
$newdata->status = 'Belum Lunas';
$newdata->save();
if ($newdata) {
session()->flash('status', 'Task was successful!');
session()->flash('type', 'success');
return Redirect::route('account');
}
return 'false';
}
well, i am very new to laravel, so is there anyone can help fix my problem with easiest way? Thanks in advance. And sorry about my bad english too
I'm super new to JS and currently working on a discord bot. I'm looking for a way to reference the above result that is being generated (a number from 1-20), and have a command send an additional message if the result happens to be exactly a 20. Can anyone help me with this, any tips would be appreciated? Thanks. Examples below.
Current code:
module.exports = {
name: 'roll',
description: "this is a roll command!",
execute(message, args){
message.channel.send(`${message.author} rolled a **D20** <:d20:790654162600853535> and got***${Math.floor(Math.random() * 20) + 1}*** !`);
}
}
Current Result: @User rolled a D20 and got 20!
Alternate Current Result: @User rolled a D20 and got 5!
Wanted Result : @User rolled a D20 and got 20! !
@User rolled a Critical!
Alternate Wanted Result : @User rolled a D20 and got 5! !
I have a function that pushes a sequence of random numbers to an empty array. I don't mind duplicates in the array, but I really need it NOT to repeat numbers that are next to each other. So, for example [1,2,3,4,1] would be totally fine, but [1,1,2,3,4] would not. I've tried putting an if statement into the code, but I'm not quite getting it right. Here's the code I'm using to generate the array. Any help, as always, very gratefully received!
let initArray = [];
function makeCircleArray(level) {
var i = 0;
do {
var val = Math.floor(Math.random() * 9)
initArray.push(val)
i++
}
while (i < level.dots)
console.log(`${initArray}`)
return initArray;
}
I'm implementing the Fisher-yates shuffle in a Photoshop script. I want to create an array of n unique random elements from a maximum of about 99999. Where n is a small value but could be up to to maximum.
With maximum of under a thousand this is fine (runs in milliseconds), but considerably much slower for 10,000 (about 20 seconds).
Is there a better/faster way to do this? Bear in mind that'll it'll need to be in ECMAScript.
var maxNumber = 99;
var numToGenerate = 5;
var bigShuffle = shuffle(maxNumber);
var randomNumbers = bigShuffle.slice(0, numToGenerate);
alert(randomNumbers);
function shuffle(m)
{
var temp;
var rnd;
// create an empy array
var arr = new Array();
var d = m + "";
d = d.length;
for(var i = 0 ; i < m; i++)
{
arr.push(i);
}
while (m)
{
rnd = Math.floor(Math.random() * m-=1);
// And swap it
temp = arr[m];
arr[m] = arr[rnd];
arr[rnd] = temp;
}
return arr;
}
I have to fill a matrix with random numbers 0 or 1, but if a cell contains 1, the other 8 around it must be 0. As a beginner, I tried to implement my code in this way:
for (int i = 0; i < 5; i++){
for (int j = 0; j < 5; j++){
a[i][j] = rand() % 2;
if (a[i][j] == 1){
a[i-1][j-1] = 0;
a[i-1][j] = 0;
a[i-1][j+1] = 0;
a[i][j-1] = 0;
a[i][j+1] = 0;
a[i+1][j+1] = 0;
a[i+1][j] = 0;
a[i+1][j+1] = 0;
}
}
}
Of course, I'm sure there is a cleaner way to write this code. Can you help me? Thanks in advance!
I am trying to make a carousel which displays 4 random posts. I came across a simple random div display from another thread
$divs = array(
'<div id="divZero">Start Div</div>',
'<div id="divFirst">First Div</div>',
'<div id="divSecond">Second Div</div>',
'<div id="divThird">Third Div</div>',
'<div id="divFourth">Fourth Div</div>',
'<div id="divFifth">Fifth Div</div>',
'<div id="divSixth">Sixth Div</div>'
);
// Array with 4 random keys from $divs
$randKeys = array_rand($divs, 4);
echo $divs[$randKeys[0]]; // First random div
echo $divs[$randKeys[1]]; // Second random div
echo $divs[$randKeys[2]]; // Third random div
echo $divs[$randKeys[3]]; // Fourth random div
The problem is I am using classes for the divs and the wrapping is not simple, and I am incorporating Google Analytics tracking code. When I try it with my div set up, I get the 417 - Expectation Failed error. Was wondering if anyone might be able to help me sort this out.
The divs use class formats since they repeat, but the link, title (and GA label names) change. Here is an example of 2
<div class="rec-wrap clearfix">
<div class="rw-image"><a href="https://www.website.com/linkA" onclick="ga('send', 'event', { eventCategory: 'Evergreen', eventAction: 'Click', eventLabel: 'Story Title A'});"><img src="https://website.com/imageA.jpg" width="80" height="80"></a></div>
<div class="rw-title"><a href="https://www.website.com/linkA" onclick="ga('send', 'event', { eventCategory: 'Evergreen', eventAction: 'Click', eventLabel: 'Story Title A'});">Story Title A</a></div>
</div>
<div class="rec-wrap clearfix">
<div class="rw-image"><a href="https://www.website.com/linkB" onclick="ga('send', 'event', { eventCategory: 'Evergreen', eventAction: 'Click', eventLabel: 'Story Title B'});"><img src="https://website.com/imageB.jpg" width="80" height="80"></a></div>
<div class="rw-title"><a href="https://www.website.com/linkB" onclick="ga('send', 'event', { eventCategory: 'Evergreen', eventAction: 'Click', eventLabel: 'Story Title B'});">Story Title B</a></div>
</div>