Re: [R] anova power calculations

2008-02-21 Thread Will Holcomb
To answer my own question, the notes that I was drawing from made it seem as through the mean I was using for my sum of squares was unweighted. In reality, I needed to weight the contribution of each contributing mean by the sample size. Once I did that, I got a value that agreed with SAS. So, the

[R] anova power calculations

2008-02-21 Thread Will Holcomb
I sent a message a couple days ago about doing calculations for power of the ANOVA. Several people got back to me very quickly which I really appreciated. I'm working now on a similar problem, but instead of a balanced ANOVA, I have an unbalanced one. The first part of the question was: You assum