> lines(survexp( ~ trt, ratetable=pfit.wtd, data=pbc), col='purple')
Error in eval(expr, envir, enclos) : object 'albumin' not found
The code does work, however, using the latest version of survival.
(Use of case weights in survexp languished on my to-do list for a long
long time.)
Terry Therne
The system details follow below. Also, I have attempted specifying
the variables in a second "ratetable" statement, but the same "missing
object" error occurs in creating a survexp object/list.
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
Hello,
I probably have a syntax error in trying to generate an expected
survival curve from a weighted cox model, but I can't see it. I used
the help sample code to generate a weighted model, with the addition
of a "weights=albumin" argument (I only chose albumin because it had
no missing values,
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