MATLAB: How to get the columns of non zero matrix

arraymatrix

I have a matrix named A
a= [1  0  0  0  0  0  0  0  0  0;
    0  0  0  0  0  0  0  0  0  0;
    0  1  0  0  0  0  0  0  0  0;
    0  0  1  0  0  0  0  0  0  0;
    0  0  0  1  0  0  0  0  0  0;
    0  0  0  0  1  0  0  0  0  0;
    0  0  0  0  0  1  0  0  0  0;
    0  0  0  0  0  0  1  1  0  0;
    0  0  0  0  0  0  0  0  1  1];
How can I have the number of column of non-zero number in a matrix? (Check by rows)
The result would be
Column = [1 0 2 3 4 5 6 7  8 9 1 0]

Best Answer

Your example is a bit vague, but if the main question is to find the non-zero values in the matrix, I would suggest using the following
[r c] = find(a~=0) %returns rows (r) and columns (c) of non-zero values
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