Before rewriting in C, especially if you are new at it, have you
profiled (Rprof) your function to see the time is being spent? Are
you using dataframe or matrices; there is a big speed different
between them when accessing data. So profile your code, see where the
time is spent and then decide w
Hello there,
I recently wrote some code to perform pairwise correlations between all
samples in a large dataset. So we are talking about performing pairwise
correlations between 400K vectors. Since R has a very rich library of
functions, it was very easy to code this in R. However, R was probably
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