On 10/05/2011 04:27 AM, andrewH wrote: > Dear folks, > > I’m trying to build a function to create and make available some variables I > frequently use for testing purposes. Suppose I have a function that takes > some inputs and creates (internally) several named objects. Say, > > fun1 <- function(x, y, z) {obj1 <- x; obj2 <- y; obj3 <- z > <missing stuff> > } > > Here is the challenge: After I run it, I want the objects to be available in > the calling environment, but not necessarily in the global environment. I > want them to be individually available, not as part of a list or some larger > object. I can not figure out how to do this. If I understand the situation > correctly, I am trying to move several separate objects from the environment > of the function to the environment in which the function was invoked (the > “calling environment,” yes?). > > I’m pretty sure there is a command to do this, but I’m not sure how to find > it. Any help would be greatly appreciated – either on the necessary code, or > on how to search for it, or a reference to a good discussion of this family > of problems. > > Sincerely, andrewH > > > -- > View this message in context: > http://r.789695.n4.nabble.com/reporting-multiple-objects-out-of-a-function-tp3873380p3873380.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
Hi, You can use the <<- operator. Although in the spirit of fortune(106), "If <<- is the answer, rethink your question...". Why is it important that your objects are not part of a larger object, which is standard practice in R. You could also take a look at the attach() command: bla = fun1(x,y,z) attach(bla) Note that in fun1 you do need to return your objects in a list. However, I'm still not in favor of using this approach... good luck, Paul -- Paul Hiemstra, Ph.D. Global Climate Division Royal Netherlands Meteorological Institute (KNMI) Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39 P.O. Box 201 | 3730 AE | De Bilt tel: +31 30 2206 494 http://intamap.geo.uu.nl/~paul http://nl.linkedin.com/pub/paul-hiemstra/20/30b/770 ______________________________________________ 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.