If you want an easy way to change the name of the data frame for assignment then you may want a macro. There is an article in the R journal ( http://cran.r-project.org/doc/Rnews/Rnews_2001-3.pdf) on creating macros and there are tools that help with creating macros in the gtools package.
Though what you are trying to do may work a little better using `findInterval` or `merge`. On Wed, Jun 12, 2013 at 2:36 PM, bcrombie <bcrom...@utk.edu> wrote: > I'm adding a column (region) to a data frame (devUni8), and the (region) > column will be populated by a numeric code that is a function of another > column (state) in that data frame. See part of the script below. > > How can I rewrite this so that I could apply the conditions to any data > frame without having to keep typing its name (in this case, "devUni8$"). > I've heard the attach() function is to be avoided, and I'm not good at > with, > while, or if statements right now. I've tried some other things but keep > getting "object not found" errors. Assistance appreciated. Thanks. > > #Create Region Variable > ######### > devUni8$region=0 > > #Assign Northeast States > ######### > devUni8$region[devUni8$state >= 11 & devUni8$state <= 23 | devUni8$state >= > 51 & devUni8$state <= 55] = 1 > > #Assign Southeast States > ######### > devUni8$region[devUni8$state >= 56 & devUni8$state <= 64 ] = 2 > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/rewrite-script-to-eliminate-constant-object-reference-tp4669393.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. > -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com [[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.
