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NaN in matrix

From: Xin Dong
Subject: NaN in matrix
Date: Thu, 14 May 2009 08:45:51 -0500
Hi,

I wanna calculate the correlation of a matrix but I got a lot of NaN. I guess the problem is that some of the elements are NaN. Because the matrix is very big, I can't print it out to check. How can I know if there are NaNs in the matrix? And if there are, how can I change them to 0?

Thanks,
Xin
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