Help comparing two matrices

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Antonio
Antonio 2014-12-22
编辑： Antonio 2014-12-22
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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采纳的回答

Azzi Abdelmalek
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
Roger Stafford 2014-12-22
C = sign(A-B);

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