Advanced use of randi(x) and other random number generating functions

Is it possible to get the randi(x) function to work with a specifically chosen set of numbers, such as 1 through 9 except 6?
From what I can tell, the function description doesn't make it seem possible. Is there a creative way around this? What about using other random number generating functions?

 Accepted Answer

There's nothing builtin do exclude certain numbers. Of course this is accomplished with a little bit of manipulation:
x=randi(8,[5 5])
x(x>=6) = x(x>=6)+1
randperm might be your friend as well.

More Answers (1)

your_range=[1:5 7:9]
[~,ii]=sort(rand(1,numel(your_range)))
out=your_range(ii)

1 Comment

The sort(x) function became very important later. Thank you for pointing it out!

Sign in to comment.

Categories

Find more on Random Number Generation in Help Center and File Exchange

Asked:

on 18 Apr 2014

Commented:

on 30 Apr 2014

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!