The following returns zeros where elements do match, and NaN's where they
don't match
mat1 <- matrix(c(1,2,1,2), 2, 2)
mat2 <- matrix(c(0,0,1,2), 2, 2)
mat1 %% mat2
______________________Scott Chamberlain
Rice University, EEB Dept.
On Tuesday, May 31, 2011 at 8:41 AM, Alaios wrote:
> Dear all,
> I have a few matrices that are roughly the same (same dimensions).
> How I can find fast which are the elements that differ?
>
> Best Regards
> Alex
>
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