I was looking for:
fisher.comb <- function (pvalues)
{
df=length(pvalues)
ch2=(-2*sum(log(pvalues)))
return pchisq(ch2, df=df, lower.tail=FALSE)
}
http://en.wikipedia.org/wiki/Fisher%27s_method
for the second part:
the calculation of the p-value from the result of fischer combination test .
Ki
Knut,
With the assumption that you are asking about Fisher's LSD for all pairwise
contrasts in ANOVA,
then it is available, along with many superior tests, in the multcomp
package in R.
See ?glht.
Since you mention Excel, please look at RExcel, a package which seamlessly
merges
R and Excel. Any
(Ted Harding) schrieb:
Thank you, for your answer,
As to "Fisher's combination test", I'm not sure whether this is
meant to be something different from the above.
It should be the same, only another name.
Regards Knut
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R-help@r-project.org mai
On 12-May-10 10:14:41, Knut Krueger wrote:
> Hi to all
> is there a fisher's post hock test or fisher's combination test
> in R available?
> Maybe not -- its very easy to do it in excel ...
> Kind regards Knut
... Which is the best of all possible reasons for having it available
in R. And indeed
Hi to all
is there a fisher's post hock test or fisher's combination test in R
available?
Maybe not -- its very easy to do it in excel ...
Kind regards Knut
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