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
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