dear r-experts: there is probably a very easy way to do it, but it eludes  
me right now. I have a large data frame with, say, 26 columns named "a"  
through "z". I would like to define "sets of regressors" from this data  
frame. something like

myregressors=c("b", "j", "x")
lm( l ~ myregressors, data=... )

is the best way to create new data frames that contain all the variables I  
want, then use ".", and then destroy them again? or am I overlooking  
something obvious?

sincerely,

/iaw

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