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extensions_of_fisher
2012 Oct 31
0
combined dependent pvalue
...d2195964.html#a2305025):
fisher.comb <- function (pvalues)
{
df=length(pvalues)
ch2=(-2*sum(log(pvalues)))
return pchisq(ch2, df=df, lower.tail=FALSE)
}
For combination of dependent p-value, I could not find any R code here but
there is a method from Brown
(http://en.wikipedia.org/wiki/Extensions_of_Fisher%27s_method#Brown.27s_method),
in which it is still combine p value in the same way, the only difference is
the Chi square distirbution's variance is different from the previous method
(using the covariance of the p values).
I am not sure how to migrate from the traditional fisher's meth...