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2008 Dec 15
1
Pearson Correlation Speed
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm trying to calculate Pearson correlation coefficients for a large matrix of size 18563 x 18563. The following function takes about XX minutes to complete, and I'd like to do this calculation about 15 times and so speed is some what of an issue. Does anyone have any suggestions on ways to speed this up? I'd wondered if using C++ code to