On 01.05.2012 19:57, Heiko Neuhaus wrote:
Hi all, I am trying to create a list of all variable/value combinations in environment(). When a function with unset arguments is called, the method I have been using fails with a "missing argument" error. However it should be possible to simply skip these missing objects in the generation of the list? Could anyone recommend me a better way (that does not use a slow for/eval-combination) to achieve the desired effect? You can easily reproduce my problem using this code: ------------------------------ test1 <- function(a, b, c) { x <- as.list(environment()) print ("hi from test1!") test2(a = a, b = b, c = c)
You are rying to pass a, b, c here and hence R tries to insert those into the environment of test2 once it is called, you have not passed arguments to your test1 call.
Uwe Ligges
} test2 <- function(a, b, c) { # PROBLEM: Why can't I get a list as in test1() here? x <- as.list(environment()) print ("hi from test2!") } test1() ------------------------------ I want my list "x" in test2() to work behave just like "x" in test1(). (In this example the correct list in test2() would be empty). Thanks a lot for your time. Best wishes, Heiko Neuhaus ______________________________________________ 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.
______________________________________________ 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.