Nearly off-topic, but have you thought of using the statistics package R for some of these calculations? There is a perl module Statistics::R that implements a bridge between perl and R. Doing correlations and such in R is generally C-based, but with some vectorized optimizations for matrix operations. You might try some of your calculations to see what speed gains you might see (probably significant).

Sean

In reply to Re: PDL vs C speed question by Anonymous Monk
in thread PDL vs C speed question by glwtta

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