[Rd] coxph and drop1

From: Terry Therneau <therneau_at_mayo.edu>
Date: Mon, 14 Mar 2011 11:42:04 -0500


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



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