WilcoxonSignedRankTest sometimes returns incorrect results #37
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.
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