[Rd] weighted residuals

[Therneau, Terry M., Ph.D.]

The survival package is one of the few with a default of model=FALSE.   There are a couple 
of reasons for this, one major one is that I work in medical research and making unnoticed 
copies of the data is a risk to patient confidentiality, e.g.,  multi-state models all 
have an "id=" argument.   (The primary one, however, is probably that I'm stubborn.)

In any case, this would argue for making weighted.residuals an S3 method.  The survival 
NAMESPACE file currently has 200 S3 methods, so what's one more?

PS. An addition I would like to see in the Writing R Extensions manual would be a 
discussion of how to find a list of all the S3 methods which one's current package might 
need, or be useful to add.   A good fraction of those in the survival package were in 
response to user email of "why don't you have a method for  XYZ", when I was completely 
unaware of the existence of S3 method XYZ. At one time I did a search for UseMethod in the 
R source tree, but that doesn't find things like xtrfm(), which is defined using .Primitive.


Terry T.

-- 
Terry M Therneau, PhD
Department of Quantitative Health Sciences
Mayo Clinic
therneau using mayo.edu

"TERR-ree THUR-noh"

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