Em 12/7/2011 17:29, David Winsemius escreveu:
[snipped]
If you have millions of records and tens of thousands of NA's (say ~ 1% of the data), imagine what your console looks like if you try to pick out records from one day and get 10,000 where you were expecting 100. A real PITA when you are doing real work.
I canvas this snippet of experience and wisdom to become a fortune :-) -- Cesar Rabak ______________________________________________ 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.
