[R] multiple log-rank test for adjusted P value

2011-12-27 Thread Elliott
Hello R users: I wonder if there are functions for multiple log-rank tests with adjusted P-values. I found survdiff( ) only give pooled tests but without pairwise ones. Thanks a lot ! best wishes zhang zihong -- View this message in context:

Re: [R] multiple log-rank test for adjusted P value

2011-12-27 Thread David Winsemius
On Dec 27, 2011, at 9:52 AM, Elliott wrote: Hello R users: I wonder if there are functions for multiple log-rank tests with adjusted P-values. I found survdiff( ) only give pooled tests but without pairwise ones. Klein and Moeschberger suggest Bonferroni as a starting point. Why not use

Re: [R] multiple log-rank test for adjusted P value

2011-12-27 Thread Cheung Zihong
Thank you for your reply. I didn't know what adjust methods can apply to log-rank tests.Or the kind of tests are just not relevant? SAS seems to use sidak method to do pairwise log-rank tests. which one is sidak method in p.adjust methods? p.adjust.methods # c(holm, hochberg, hommel,

Re: [R] multiple log-rank test for adjusted P value

2011-12-27 Thread David Winsemius
On Dec 27, 2011, at 12:05 PM, Cheung Zihong wrote: Thank you for your reply. I didn't know what adjust methods can apply to log-rank tests.Or the kind of tests are just not relevant? SAS seems to use sidak method to do pairwise log-rank tests. which one is sidak method in p.adjust