Re: [R] Statistical Power

2006-05-23 Thread Greg Snow
For other than the basic situations I generally use simulation to estimate power. Follow these basics steps: Write a function that takes as input the things that you may want to change in estimating power (sample size, effect size, standard deviations, ...). Inside the function generate random d

Re: [R] Statistical Power

2006-05-24 Thread Charles C. Berry
On Tue, 23 May 2006, Christopher Brown wrote: > How can I compute a power analysis on a multi-factor within-subjects > design? If you are capable of installing source packages and if you know what a general linear hypothesis test is, you can: download 'hpower' to your computer http://g

Re: [R] Statistical Power

2006-05-24 Thread Rick Bilonick
On Wed, 2006-05-24 at 09:22 -0700, Charles C. Berry wrote: > On Tue, 23 May 2006, Christopher Brown wrote: > > > How can I compute a power analysis on a multi-factor within-subjects > > design? > > If you are capable of installing source packages and if you know what a > general linear hypothesi

Re: [R] Statistical Power

2006-05-24 Thread Ioannis Dimakos
On Wed, May 24, 2006 20:22, Rick Bilonick wrote: > > Downloading, unzipping the package on to FC4 running R 2.3.0 gives an > error message about a bad description file when trying to install > hpower. > >> R CMD INSTALL hpower > Indeed, it does so on both my Ubuntu and Win XP boxes. The problem i