Greetings,
Say I have defined
mp <- function(a) function(x) x^a
f2 <- mp(2)
and I would like to retrieve the "a" which is local to f2. Two options
come to mind;
get("a", envir=environment(f2))
eval(substitute(a), environment(f2))
I'm curious if one of these is preferred over the other in terms of
efficiency, robustness, aesthetics, etc. Or perhaps someone can share
another way to skin this cat, besides wrappers around eval() like
evalq(a, environment(f2))
with(environment(f2), a)
Also, I'd like to confirm that I have used the correct terminology in
the subject line, that "a" is a local variable with respect to f2, which
is a closure?
Thanks,
Ben
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