I have an unbalanced design I would like to run a power analysis on. What I have been able to find has pointed me to using the pwr.f2.test function as described below. My problem is that I don't know how to appropriately define the numerator and demoninator df.
If someone can help here is some more info about my design. It is an unbalanced 2^3 x 3 design where the factor with 3 levels is a random effect. So say there are factors A, B, C with 2 levels and D with 3 levels A will have 77 observations at level -1 and 19 at 1 B will have 67 at -1 and 29 at 1 C will have 57 at -1 and 39 at 1 D will have 32 at -1, 0, and 1 General Linear Model Function: pwr.f2.test Arguments: u: Numerator degrees of freedom v: Denominator degrees of freedom f2: Effect Size sig.level: Significance level power: Power of test ______________________________________________ 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 provide commented, minimal, self-contained, reproducible code.