On Sun, May 8, 2016 at 7:28 PM, Bert Gunter <bgunter.4...@gmail.com> wrote: > Jeff: > > That's easy to do already with substitute(), since you can pass around > an unevaluated expression (a parse tree) however you like. As I read > it, (admittedly quickly) what it's main feature is that it allows you > more control over the environment in which the expression is finally > evaluated -- as well as permitting nested expression evaluation fairly > easily. > > But maybe we're saying the same thing ... IMHO I think Hadley has > gone overboard here, worrying about rarely important issues, as you > seem to be intimating also.
These are absolutely critical issues that crop up as soon as other people want to write functions that use your functions that use NSE. Hadley -- http://hadley.nz ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
