Michael, Thank you for that information. It was very insightful. Anyone else with why my second attempt does not work (using eapply)? ThanksTylerFrom: michael.weyla...@gmail.com Date: Sat, 27 Aug 2011 12:01:02 -0400 Subject: Re: [R] Make a function work on an environemnt To: tyler_rin...@hotmail.com CC: r-help@r-project.org
Well, here's one way you could do it: # Don't run this unless you really mean it clear <- function(){rm(list=ls(.GlobalEnv), envir = .GlobalEnv)} Both calls to .GlobalEnv seem necessary so that both rm() and ls() go everywhere with it. However, this certainly isn't the most useful code because it clears itself... I'm not the best with environments so I'll let someone else work out the problems with your other attempts, but I believe the problem with the first is that it only executes inside the function environment and not the global environment. Not sure about the second... Michael Weylandt On Sat, Aug 27, 2011 at 9:25 AM, Tyler Rinker <tyler_rin...@hotmail.com> wrote: A previous attempt at this question resulted in the message running together, making the message difficult to read and the code lines hard to distinquinsh. In my R learning I've come across a situation in which a piece of code that works on the work space outside a function does not work inside the function. WARNING THIS EMAIL CONTAINES THE CODE:#rm(list=ls()) THIS WILL CLEAR ALL OBJECTS FROM YOUR WORKSPACE! When I use rm(list=ls()) and then ls() it shows character(0) So I tried to make a quick function to speed this up as follows: #==================== # ATTEMPT 1 #==================== clear <- function()rm(list=ls())clear() ls() #all objects are still attached #==================== # ATTEMPT 2 #==================== clear <- function(){ {CLEAR <- function()rm(list=ls())} eapply(globalenv(),CLEAR) }clear()ls() #============================ #ERROR MESSAGE FRPM ATTEMPT 2 #============================ clear() Error in FUN(list(function (x) : unused argument(s) (list(function (x) QUESTIONS:Why does this code not work inside the function? Please critique both my attempts. What would I need to do to make the pieces of code work inside the function? Windows 7 R version 2.14 beta Thanks in advance, Tyler Rinker [[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.