[Rd] Evaluation puzzle
therneau at mayo.edu
Thu Nov 11 23:27:03 CET 2010
At the above statement you have lost the environment of your formula.
> m$formula <- tform
Replace this with:
m$formula <- as.formula(tform, environment(formula))
No, I have not "lost" an environment. I manufactured a formula which
lacked something needed, but without the necessary hint that I needed
it. But that is semantics: A closer reread of help(model.frame) shows
that the documentation is there, I had missed it.
I'm still puzzled by recover though.
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