[SciPy-user] scipy.stats.stats mannwhitneyu vs ranksums?

Elias Pampalk elias.pampalk@gmail....
Thu Jul 2 12:43:22 CDT 2009


Why does stats.py contain both mannwhitneyu and ranksums?

See also:
http://en.wikipedia.org/wiki/Mann-Whitney-Wilcoxon_test

"Mann-Whitney U test (also called the Mann-Whitney-Wilcoxon (MWW), Wilcoxon
rank-sum test, or Wilcoxon-Mann-Whitney test)"

http://www.mathworks.com/access/helpdesk/help/toolbox/stats/index.html?/acce
ss/helpdesk/help/toolbox/stats/ranksum.html

"ranksum [...] The test is equivalent to a Mann-Whitney U-test."

Thanks,
Elias

PS. @David, @Pauli: Thank you for answering my question wrt documentation
yesterday!



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