Greetings I have a piddle (in matrix form). For each row I need a pairwise comparison to every other row (but not to itself). I need to use 'where' on the two piddles. I am subsequently using 'cov' in PDL::Stats::Basic to calculate the covariance of the two piddles.
Here is my questions: How can I avoid an outer and inner for loop in perl to do every pairwise comparison? I understand this is probably a basic question, but I haven't had luck after reading the indexing tutorial... -- Zev Kronenberg Graduate Student University of Utah phone: 208-629-6224
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