Search "sample size power" on rseek.org. Many useful hits, including "samplesize" package.
-- Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Wed, Apr 12, 2017 at 9:32 AM, David Winsemius <dwinsem...@comcast.net> wrote: > >> On Apr 12, 2017, at 3:20 AM, Jomy Jose <infoj...@gmail.com> wrote: >> >> In R how to calculate sample size,where power,residual standard deviation >> and treatment difference is given.? > > Use the non-central t-distribution. The help page has further advice: > > ?pt > > >> >> [[alternative HTML version deleted]] > > Please read the Posting Guide before any further replies. > ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help > > \/\/\/\/\/\/\/\/\/\/\/ >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > ^^^^^^^^^^^^^^^^^^^^^^ >> and provide commented, minimal, self-contained, reproducible code. > > David Winsemius > Alameda, CA, USA > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.