How to randomly sample data with seeding?

I would like to randomly choose elements from a finite set that contains both numbers and NaNs while seeding the random number generation procedure.

So far I can make it work without seeding:

data = [0, 1, 2, 3, 4, 5, nan];
sample = datasample(data, 50);

but if I want to seed the number generation:

seed = rng(100);
sample = datasample(seed, data, 50);

I get the following error:

Error using datasample (line 89)
Sample size K must be a non-negative integer.

even if the syntax for datasample is (*):

[y,...] = datasample(s,data,k,...)

I have tried using randsample, too, but I get similar results.

(*) http://ift.tt/2iR5Ul6