On 7/2/2009 9:46 AM, Peter Dalgaard wrote:
Duncan Murdoch wrote:
<<- doesn't need to find z. It will replace it if found, or create a
new one if not. (Personally I would have limited that to the first
case, i.e. it should fail if it doesn't find z.)
Possibly. It's a holdover from S, where <<- assigns to the global
environment unconditionally. (S doesn't have lexical scope, so there
are effectively only two places to choose from: the function evaluation
frame and the global frame -- unless you start mucking around with
sys.frame, frame 0, frame 1, etc., in which case you'd use assign(...))
I didn't say we made the mistake ;-).
Duncan Murdoch
______________________________________________
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.
