MATLAB: How to do repeating numbers in array

matlab functionscript

Hi
I have an array like [1 0 0 0 2 0 0 0 3 0 0 0 0 0 5 0 0 0 0].
I want output like, [1 1 1 1 2 2 2 2 3 3 3 3 3 3 5 5 5 5 5].
how i can do this?
Thanks in Advance!!!
Murugan

Best Answer

An old fashioned way:
>> V = [1,0,0,0,2,0,0,0,3,0,0,0,0,0,5,0,0,0,0];
>> X = V~=0;
>> U = V(X);
>> U(cumsum(X))
ans =
1 1 1 1 2 2 2 2 3 3 3 3 3 3 5 5 5 5 5