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How to replace elements different than 0 and different than NaN to 1?

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cfjunior
cfjunior 2013-10-24
评论： cfjunior 2013-10-24
I have this huge matrix with a lot of elements: (i) equal to zero; (ii) number different than zero; (iii) NaN values ...
I need to replace all the the NUMBERS different than 0 to 1.
How do I do it not replacing the NaN values?

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Mohammad Monfared
Mohammad Monfared 2013-10-24
Let the matrix name, A, so this is done by:
A(xor((A~=0),isnan(A))) = 1 ;

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Azzi Abdelmalek
Azzi Abdelmalek 2013-10-24
编辑：Azzi Abdelmalek 2013-10-24
A(A~=0)=1
%or maybe you want
idx=isnan(A) | A==0
A(~idx)=1
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