how to generate a random vector sized 1x100 or 100x1 without the numbers (mod,5)=0 ?

vector sized 1x100 or 100x1 without the numbers (mod,5)=0

Answer 1

[Roger Stafford]

If you want to range uniformly over the first N positive integers that are not divisible by 5 and you want n random samples, do this:

   x = floor(5/4*randi([0,N-1],n,1)+1);

Answer 2

[Star Strider]

I have no idea what you actually want or what range the numbers have to be. The simplest way to do what you want is:

rv = [randi([1 4],1,50)  randi([6 9],1,50)];

[Hüseyin]

I want to generate a random vector like rand(1,100) but I want to delete the numbers which can divided to 5.

[Star Strider]

None of the numbers produced by rand(1,100) will be evenly divisible by 5 because the output of the rand function produces numbers between (but not including) 0 and 1.

Problem solved?

[Mustafa]

i do not think so, numbers between 0 and 1 can be divisible by 5.. for example 0.263215/5=.055256643 ??

[John D'Errico]

Mustafa - No. The requirement was that mod(x,5) == 0. A floating point number as you show will not have that property.