dear all, in the package pwr , there is the fonction power.anova.test which permit to obtain the power for a one-way ANOVA...but I'm looking for a way to compute the power of a multiway ANOVA.( find the 1-beta). Is it possible? do you have some ideas ? regards [[alternative HTML version deleted]]
See, http://tolstoy.newcastle.edu.au/R/help/06/05/27989.html HTH, Chuck On Thu, 5 Jun 2008, biologeeks wrote:> dear all, > > in the package pwr , there is the fonction power.anova.test which permit to > obtain the power for a one-way ANOVA...but I'm looking for a way to compute > the power of a multiway ANOVA.( find the 1-beta). Is it possible? > > do you have some ideas ? > > > regards > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > 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. >Charles C. Berry (858) 534-2098 Dept of Family/Preventive Medicine E mailto:cberry at tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
On 6/06/2008, at 1:08 AM, biologeeks wrote:> dear all, > > in the package pwr , there is the fonction power.anova.test which > permit to > obtain the power for a one-way ANOVA...but I'm looking for a way to > compute > the power of a multiway ANOVA.( find the 1-beta). Is it possible? > > do you have some ideas ?The cumulative F distribution function pf in R allows for a non- centrality parameter, so you can calculate the power of any F-test, against any properly specified alternative hypothesis, if you know what you are doing. (And if you don't know what you're doing, don't do it.) cheers, Rolf Turner ###################################################################### Attention:\ This e-mail message is privileged and confid...{{dropped:9}}