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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...
Hi After launching newly-installed R 3.2.1 (on Windows 7), I run the following two commands: > getwd()[1] "C:/ProgramData/Microsoft/Windows/Start Menu/Programs/R" > Sys.getenv('R_USER')[1] "C:\\Users\\<my username>\\Documents" I would...
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.Eichner at math.uni-giessen.de> wrote: Hello, Mauricio, maybe pwr.t2n.test() in package...
David, I was not aware I could search through the list of available packages. ?Thanks very much for the tip. Regarding your guidance that my question may not have been appropriate for R-help as it may not have been...
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