Re: [R] testing power of correlation

2011-03-05 Thread Jeremy Miles
Can you clarify what you mean? The strength of the correlation is the correlation. One (somewhat) useful definition is Cohen's, who said 0.1 is small, 0.3 is medium and 0.5 is large. Or do you (as your subject says) want to get the power for a correlation? This is a different thing. Jeremy O

Re: [R] testing power of correlation

2011-03-05 Thread Jorge Ivan Velez
Hi Anna, Take a look at ?cor ?cor.test and http://www.statmethods.net/stats/power.html HTH, Jorge On Sat, Mar 5, 2011 at 3:02 PM, Anna Gretschel <> wrote: > Dear List, > > does anyone know how I can test the strength of a correlation? > > Cheers, Anna > >

[R] testing power of correlation

2011-03-05 Thread Anna Gretschel
Dear List, does anyone know how I can test the strength of a correlation? Cheers, Anna __ R-help@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 p