Gerrit, thanks for the suggestion. samplesize::n.ttest does seem to handle
unequal variances.
On Tuesday, December 20, 2016 2:55 AM, Gerrit Eichner
<gerrit.eich...@math.uni-giessen.de> wrote:
Hello, Mauricio,
maybe pwr.t2n.test() in package pwr or/and n.ttest() in package samplesize do
what you need/want.
Hth -- Gerrit
> On Dec 19, 2016, at 1:47 PM, Mauricio Cornejo via R-help
> <r-help@r-project.org> wrote:
>
> Is there a function similar to stats::power.t.test that can handle unequal
> variances from two samples?
> I noticed that stats::t.test has an argument for indicating whether or not to
> treat the two sample variances as equal. Wondering why stats::power.t.test
> doesn’t have that option.
> Thanks, Mauricio
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