[R] Need your help in calculating the p-value

Adaikalavan Ramasamy ramasamy at cancer.org.uk
Wed Feb 23 17:15:46 CET 2005


See the details and references section of help("wilcox.test"). A small
section from the details might be relevant :

     By default (if 'exact' is not specified), an exact p-value is
     computed if the samples contain less than 50 finite values and
     there are no ties.  Otherwise, a normal approximation is used.

Also type in stats:::wilcox.test.default or getAnywhere
("wilcox.test.default") to see the actual codes.

Regards, Adai


On Wed, 2005-02-23 at 10:28 -0500, Latha Raja wrote:
> Hi,
> 
> I am using R to perform wilcox.test and wondering if you know how the p-value in wilcox.test is calculated?
> 
> Thank you for your help:-)
> 
> Regards,
> 
> Latha
> 
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