Re: [R] weighed Fleming-Harrington log rank test

2018-02-16 Thread array chip via R-help
Thank you Terry. Right now I can use comp() from survMisc package to do the 2-parameter version of F-H weighting. I think both SAS and stata offer the 2-parameter version, so just thought it would be nice if survdiff() can have that option given it's standard package in R.  Thanks! John On

Re: [R] weighed Fleming-Harrington log rank test

2018-02-16 Thread Therneau, Terry M., Ph.D.
You are correct that the survreg routine only supports 'rho' of the Fleming-Harrington G-rho tests. This is a function of age -- I wrote the original code back when I was working with Tom (Fleming), and he was only using 1 parameter. Later he and David expanded the test to two parameters.