The R Language definition manual explains all of this. Read it. -- Bert
On Thu, Oct 4, 2012 at 3:53 PM, Peter Meilstrup <peter.meilst...@gmail.com> wrote: > On Wed, Oct 3, 2012 at 11:21 PM, Josh O'Brien <joshmobr...@gmail.com> wrote: >> >>>Say I have argnames <- c("a", "b", "c"). >> >From that I want to construct the equivalent of alist(a=, b=, c=). >> >> Here's a one liner that'll do that for you: >> >> argnames <- letters[1:3] >> setNames(rep(list(bquote()), length(argnames)), argnames) > > Thanks. > > Just so I have my mental model correct, I'm gathering that missing/`` > is a symbol that the interpreter has a special rule for -- evaluating > it raises an error, as opposed to objects that evaluate to themselves > or variable names that evaluate to objects. > > Does the same sort of thing explain the behavior of `...`? When the > interpreter comes across `...` in the arguments during evaluation of a > call, it trips a special argument-interpolating behavior? > > Peter > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel