Question

I want a column vector of random 5 and 1s (roughly equal number of each). I can easily get a column vector of full of 5 and 0s by doing this:

rc = 5*(rand(400,1)<0.5)

I believe this is a MatLab style way of doing things. However, I want to avoid having to do this:

    for y = 1 : length(rc)
       if rc(i) == 0
           rc(i) = 1;
       end         
    end 

because 1) I have to iterate all over again 2) it’s not ‘MatLab like’. Any ideas guys? Thank you.

Answer 1

It will be then:

4* (rand(400, 1)< .5)+ 1