[R] V-value in the wilcox.test resp. wilcox.exact

Jan Malte Wiener jan.wiener at tuebingen.mpg.de
Tue Oct 15 13:38:18 CEST 2002


hi,
when performing a wilcox.test or a wilcox.exact i get results that looks 
like this:

wilcox.exact(x, mu=.5)
         Exact Wilcoxon signed rank test

data:  x
V = 207, p-value = 0.0006905
alternative hypothesis: true mu is not equal to 0.5


the way i understand the wilcox.test (or wilcox.exact) the V-value 
represents the summed up ranks of either the positive or negative 
differences, whichever sum is BIGGER.

to actually look up the p-value in a table (and to quote it in a 
publication) i need the T value, which to my understanding is the summed 
up ranks of either the positive or negative differences, whichever sum 
is SMALLER.

so i guess my question is: how do i get the T-value

thanks,
jan

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