Re: [R] Sample size estimation for non-inferiority log-rank and Wilcoxon rank-sum tests

On 09/27/2010 08:09 PM, Paul Miller wrote: > Hello Everyone, > > I'm trying to conduct a couple of power analyses and was hoping > someone might be able to help. I want to estimate the sample size > that would be necessary to adequately power a couple of > non-inferiority tests. The first would b

Re: [R] Sample size estimation for non-inferiority log-rank and Wilcoxon rank-sum tests

I haven't done much with the type of data you're working with, but here is a post that lists a few packages for doing sample size calculations in R. Perhaps one of them will be helpful. https://stat.ethz.ch/pipermail/r-help/2008-February/154223.html Andrew Miles On Sep 27, 2010, at 2:09 PM,

[R] Sample size estimation for non-inferiority log-rank and Wilcoxon rank-sum tests

Hello Everyone,   I'm trying to conduct a couple of power analyses and was hoping someone might be able to help. I want to estimate the sample size that would be necessary to adequately power a couple of non-inferiority tests. The first would be a log-rank test and the second would be a Wilcoxon