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)
The error message was exactly correct. lm is not a Design fitting function. Try ols. -Frank
Thanks in advance
Peter
Peter L. Flom, PhD Assistant Director, Statistics and Data Analysis Core Center for Drug Use and HIV Research National Development and Research Institutes 71 W. 23rd St www.peterflom.com New York, NY 10010 (212) 845-4485 (voice) (917) 438-0894 (fax)
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Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
