[R] Error when using step

[Chris Friedl]

David Winsemius wrote:
> 
> 
> ...
> 
> Perhaps:
> 
> by(data2, data2$grp, function(x) step(lm(model, data=x)))
> 
> 
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
> 
> 

Perhaps .... ;) You know of course that this worked. It took a moment to
understand the screen output because each case gets dumped one after the
other but finding the string "Start:" cleared up the confusion. Thanks for
the solution.
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