Dear Terry, Possibly I'm missing something, but since the generic drop1() doesn't have a test argument, why is there a problem?
> args(drop1) function (object, scope, ...) If you use match.arg() against test, then the error message should be informative if one of the prescribed values isn't supplied. Best, John ------------------------------------------------ John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Mon, 14 Mar 2011 11:42:04 -0500 Terry Therneau <thern...@mayo.edu> wrote: > A recent question in r-help made me realize that I should add a drop1 method > for coxph and survreg. The default does not handle strata() or cluster() > properly. > However, for coxph the right options for the "test" argument would be > likelihood-ratio, score, and Wald; not chisq and F. All of them reference > a chi-square distribution. My thought is use these arguments, and add an > error message "read the help file for drop1.coxph" when the defaults appear. > > Any better suggestions? > > Terry Therneau > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel