1. You can do this: > library(plotrix) > environment(draw.arc) <- .GlobalEnv # implicitly copies it > detach() > plot(1,1) > draw.arc(1, 1, .1) # its there
2. Since the local environment we created in the prior post was anonymous and since there are no other references to it either I assume it gets deleted on the next garbage collection automatically. On 6/18/07, Ted Harding <[EMAIL PROTECTED]> wrote: > On 18-Jun-07 14:28:35, Gabor Grothendieck wrote: > > This loads all the functions into an anonymous environment defined > > by local and then exports f to the global environment. > > > > f <- local({ > > source("/a.R", local = TRUE) > > environment(f) <- .GlobalEnv > > f > > }) > > That looks neat! Two questions: > > 1. Would something similar work for extracting selected functions > from a library (assuming that you know about interdependencies)? > > E.g. something like > > f <- local({ > library(f.etc.lib) > environment(f) <- .GlobalEnv > f > }) > > > 2. Having done what you describe to extract just f from a source > file, can one then "delete" the local environment used to load > the source? I think what I'm basically asking is whether the > exporting is done "by value" (local environment deletion OK) > or "by reference" (deletion would destroy the exported object). > > Apologies, but for instance "?local" is a bit too deep for me! > > The underlying agenda behind these queries is the saving of > memory space. > > With theanks, > Ted. > > -------------------------------------------------------------------- > E-Mail: (Ted Harding) <[EMAIL PROTECTED]> > Fax-to-email: +44 (0)870 094 0861 > Date: 18-Jun-07 Time: 17:11:15 > ------------------------------ XFMail ------------------------------ > > ______________________________________________ > R-help@stat.math.ethz.ch 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@stat.math.ethz.ch 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.