[Rd] issue with [[<-Call
Therneau, Terry M., Ph.D.
therneau at mayo.edu
Fri Dec 26 14:31:11 CET 2008
Thanks for the comments.
-- I agree that the vector form is more compact. I was using a loop
because I found it to be even more transparent to the class. For a one
time task such as this efficiency is not an issue.
-- I'll make use of eval.parent(). I hadn't yet stumbled on that
-- The code in lm() is almost exactly my "other approach"! (I doubt
convergent evolution - I must have noticed this example at some past
I was reasoning in parallel to lists
> temp <- list(a=1:3)
> temp[['b']] <- 5:6
 1 2 3
 5 6
and assumed that this should work for call objects. The informal
"underneath it all, all the language objects are lists" idea, which I
think I absorbed from one of the original Bell Labs books. I leave it
to the core team to decide if this should be 'fixed'.
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