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Dynamic weighted sampling with replacement
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Weighted sampling with replacement, with dynamic weights

This code solves the problem of weighted sampling from a set, when you want to change the weight of a sample after you sample it. The implementation is described in the blog post here. The technique used is not novel, indeed it is based on publications from the 1960s.

A Cython implementation is provided along with the regular Python implementation.

Requires numpy and py.test packages.

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