[Octave-bug-tracker] [bug #50169] [octave forge] (statistics) u_test wrong result (reversed alternative hypothesis p value and inaccurate z value)

[Andreas Bertsatos]

Follow-up Comment #2, bug #50169 (project octave):

The reason for the inaccuracy with small sample sizes is that different
computational methods are being used (full enumeration or network algorithm).
The newly implemented ranksum function covers u_test functionality and it is
best practice to use ranksum for doing a Mann Whitney U test. I suggest it is
best to deprecate this function from the next release and close this bug, 
since there is no reason to reimplement the functionality of ranksum in u_test
in order to fix the inaccuracy problems.


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