Hi, there,

I am having trouble using 'lrm' function in package 'Design'. Basically, 
the ' . ' after ' ~ ' wouldn't  work. Here are some sample codes:

> temp <- 
data.frame(a=c(rep(0,3),rep(1,3)),b=rnorm(6),c=c('a','b','c','a','b','c'))
> lrm(a~.,data=temp)
Error in terms.formula(formula, specials = "strat") : 
        '.' in formula and no 'data' argument

This code worked before but I can't remember the exact version number. Is 
there something being changed in the new version of lrm? If so, how to 
specify all other variables in the formula then?

Thanks in advance,

Auston


> version
               _ 
platform       i386-pc-mingw32 
arch           i386 
os             mingw32 
system         i386, mingw32 
status 
major          2 
minor          3.1 
year           2006 
month          06 
day            01 
svn rev        38247 
language       R 
version.string Version 2.3.1 (2006-06-01)



Auston Wei
Research Statistical Analyst
Division of Quantitative Science
The University of Texas MD Anderson Cancer Center
Tel: 713-563-4281
Email: wwei@mdanderson.org
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