Indeed, I misread / misunderstood. I think it's a difficult concept that's hard to explain and the example wasn't great. But thanks all for straightening me out! â David Kulp
On Mon, Jun 24, 2013 at 6:44 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > On 13-06-24 4:27 PM, David Kulp wrote: >> According to >> http://cran.r-project.org/doc/contrib/Fox-Companion/appendix-scope.pdf and >> other examples online, I am to believe that R resolves variables using >> lexical scoping by following the frames up the call stack. > You appear to have misread it. Lexical scoping follows the chain of > environments where functions were defined. It ignores the call stack. > Duncan Murdoch > However, that's not working for me. For example, the following code, > taken from the reference above fails instead of returning 7. What am I > doing wrong? Thanks! >> >> f <- function(x) { a<-5; g(x) } >> g <- function(y) { y + a } >> f(2) >> Error in g(x) : object 'a' not found >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list >> 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. >> [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list 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.
