On Wed, Nov 28, 2012 at 3:06 AM, andrewH <ahoer...@rprogress.org> wrote: > Dear Michael – > This is _very_ interesting and I want to play around with the functions you > suggest. I had no idea it was so easy to define assignment operators. > > However, one question: even after reading the “get” documentation and doing > a bunch of mousing around for the expressions “pos” and “the search path”, I > am not sure what function the numeral 1 in these expression serves. Why do I > want to look in the global environment rather than the current environment? > I also can not find anything that explains what the default “pos = -1” does. > > Thanks for responding! > > andrewH
Hi Andrew, Including context for those of us who don't read via Nabble is always much appreciated. I don't have time today to hit this with a hammer till it works, but IIRC pos = -1 means "current evaluation frame". See, e.g., http://stackoverflow.com/questions/12492226/r-environments-and-function-call-stacks http://stackoverflow.com/questions/7903414/how-are-environments-enclosures-and-frames-related http://obeautifulcode.com/R/How-R-Searches-And-Finds-Stuff/ for some hints on getting all that jazz to work right. MW ______________________________________________ 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.
