what is “rando” command in matlab

If I enter matrix in a matlab and run command rando(a) then it shows sometimes 3 and sometimes 2. if I change element values of matrix a then also rando(a) shows sometimes 3 and sometimes 2. so what is this command.

[Adam]

rando is not a builtin Matlab command so presumably it is your own function.

Answer 1

[John D'Errico]

There is NO rando function in MATLAb. Perhaps you have obtained it from someone else.

You have several options.

1. You can look at the code.
2. You can call for help on rando.
 If the author has done a good job, they will have provided help.

help rando

3. You can contact the source. Somebody wrote the code. So ask them.

4. Finally, perhaps you intended to write randi.
 In that case, READ THE HELP.

Answer 2

[Image Analyst]

Type

>> which rando

To see where it lives. To edit/open it and see what it does, type

>> edit rando.m

Answer 3

[Walter Roberson]

http://www-math.bgsu.edu/~zirbel/ap/

" Matlab program files for Math 445/545 Applied probability"

"rando.m generates a random variable in {1, 2, ..., n} given a distribution vector."