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What is a good pure Perl on-line or streaming statistics package?

Are there any prerolled streaming statistics libraries for Perl à la: http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#On-line_algorithm

I haven't found anything on CPAN yet and I really don't want to have to code one myself.

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Jeremy Wall Avatar asked Dec 02 '09 18:12

Jeremy Wall


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1 Answers

You want Statistics::Descriptive. The regular "sparse" version of the module (not Statistics::Descriptive::Full) provides statistics that are available without storing the entire dataset; variance is one of them.

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hobbs Avatar answered Sep 28 '22 19:09

hobbs