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WilcoxonSignedRankTest sometimes returns incorrect results #37

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psteitz opened this Issue Apr 24, 2018 · 0 comments

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psteitz commented Apr 24, 2018

The implementation in WilcoxonSignedRankTest does not handle tied pairs appropriately and the continuity correction applied when computing the normal approximation is incorrect.

Handling of ties should ideally be configurable (see e.g. scipy.stats.wilcoxon). Minimally, the implementation should document and correctly implement a strategy for handling tied pairs.

This issue was originally reported as MATH-1233.

@psteitz psteitz closed this in 190185f Apr 24, 2018

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