MATLAB: Non zero elements in matrix

matrix

Hello,

I have a matrix 50*50 and every single elements has a value of either '0' or '1' . How can I determine all locations of all non zero elements. It would be nice if I could store the location in an array or something easy to read and understand.

Thank you

Best Answer

[r,c]=find(mat~=0)

Related Solutions

MATLAB: Populate matrix with non-zero elements from previous matrix

I guess you want to keep those non-zero values in the same rows in which case try this, where M is your matrix:

Z = M.';
Z = reshape(Z(Z~=0),4,7567).'

MATLAB: Common Non-Zero Elements Among 5 Arrays

I am still a uncertain if this is what you want, but here goes:

idx0 = (dat1==dat2 | dat1==dat3 | dat1==dat4 | dat1==dat5) & logical(dat1);
idx1 = (dat1==dat2 | dat2==dat3 | dat2==dat4 | dat2==dat5) & logical(dat2);
idx2 = (dat1==dat3 | dat2==dat3 | dat3==dat4 | dat3==dat5) & logical(dat3);
idx3 = (dat1==dat4 | dat2==dat4 | dat3==dat4 | dat4==dat5) & logical(dat4);
idx4 = (dat1==dat5 | dat2==dat5 | dat3==dat5 | dat4==dat5) & logical(dat5);
IDX = idx0 | idx1 | idx2 | idx3 | idx4

Now IDX has a 1 where two or more arrays share a non-zero value...

Best Answer

Related Solutions

MATLAB: Populate matrix with non-zero elements from previous matrix

MATLAB: Common Non-Zero Elements Among 5 Arrays

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