[SciPy-user] help with scipy.stats.mannwhitneyu

josef.pktd@gmai... josef.pktd@gmai...
Thu Feb 5 14:54:32 CST 2009


>
> sample size 20, 9 ties
> this is with R wilcox.exact, ranksums is your ranksum
...
>
> With this correction, the normal distribution based p-value in
> ranksums looks exactly the same as stats.mannwhitneyu.

this statement is not correct.

I mixed up my variables and didn't actually have ties, now with ties,
I still get essentially but not exactly the same results.

Josef


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