[Rd] Inconsistencies in wilcox.test

Pavel S. Ruzankin ruz@nk|n @end|ng |rom m@th@n@c@ru
Mon Dec 9 03:10:10 CET 2019


I'd like to ask the developers to include some exact computation for 
ties into wilcox.test(). Just try

wilcox.test(c(1,1,5),c(10,11))

wilcox.test(c(1,2,5),c(10,11))

The p-values differ significantly.

But if I try

library(exactRankTests)

wilcox.exact(c(1,1,5),c(10,11))

wilcox.exact(c(1,2,5),c(10,11))

then the p-values coincide as expected. (R is used by many 
non-mathematicians/non-engineers who pay no attention at warnings.)



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