Hello
I am running R 2.0.1 on Windows, I am attempting to use Frank Harrell's
'fastbw' function (from the Design library), but I get an error that the
fit was not created with a Design library fitting function; yet when I
go to the help for fastbw (and also look in Frank's book Regression
Modeling Strategies) it appears that fastbw should work with a model
created with lm.....
Relevant code
<<<<<
model.borrow.logols<- lm(logborrow~age + sex + racgp + yrseduc +
needlchg + gallery + totni + inject + poly(year.of.int,3) + druginj
+ inj.years + HTLV3)
fastbw(model.borrow.logols)