Help comparing two matrices
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so I need to compare two matrices but I need to set the values the final compared matrice will have... so for example if one value is higher than the other it should display 1; if it is lower -1 and finally if it is equal 0. I have been messing with this but cant figure it out I think I need a way to go over the two matrices comparing the two elements and but then how do I set those elements back into a matrice....? why is it so complicated!!!
well i need a function... sorry and thanks for the quick responses
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Azzi Abdelmalek
2014-12-22
编辑：Azzi Abdelmalek
2014-12-22
idxp=A>B
idxn=A<B
C=zeros(size(A))
C(idxp)=1;
C(idxn)=-1
更多回答（1 个）
Roger Stafford
2014-12-22
C = sign(A-B);
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