Khamenia, Valery <V.Khamenia <at> biovision-discovery.de> writes:
: : Hi all, : : Situation: : : there is a function `f' already defined by someone and : provided in package. `f' looks like that: : : f <- function() { : x+1 : } : : i.e. `f' is not closed i.r.t. term `x' : : now I have my own function `g', where I'd like : to override variable `x' while calling `f': : : x <- "dummy gloabal value" : : g <- function() { : x <- 42 : eval(f(), environment()) # how to make loacl `x' visible in `f'? : } : : g() # => Error in x + 1 : non-numeric argument to binary operator : : Here comes the question: : : What is the right way to call `f' in order to override : global value of `x' with the local value defined within : of function `g' ? : : I see that i've missed something in docs for eval/environments and related. f <- function() x+1 g <- function() { x <- 42 environment(f) <- environment() f() } ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html