function random on matlan for quaterions numbers

i need to generate a random quaterions on matlaab between

rand(varargin{i+1}, varargin{i}+1)

but those number must be quaterionic that me the format [a b c d ] for example [1 2 3 4 ] i don't know if it possible on matlab thank u

i need to generate a random quaterions on matlaab between

rand(varargin{i+1}, varargin{i}+1)

but those number must be quaterionic that me the format [a b c d ] for example [1 2 3 4 ] i don't know if it possible on matlab thank u