MATLAB: Finding column # that contains an integer in a matrix

Question

hi,

I want to find indices of columns of a matrix which contains a specific integer.

say magic(5), how can I find column numbers that has got '5' in it if it exists!

thanks,

Mehrdad

Answer 1

X = your matrix;
indices = find(any(X==5)); % columns that have the number 5 in them