Petr Pikal wrote: > > For the time being I would say that reshape and factor ordering especially > with groupedData objects from nlme are still giving me a headache and many > trials and errors to get desired result. > > For documents in the beginning I would vote for Paul Johnsons Rtips. About > 10 yars ago it was nice collection of several useful Howto's. > >
Add me for reshape (the base one); the only printed documentation on my desk. Hadley's Reshape package has tried hard, but was not successful as plyr. Factor ordering: yes, definitively, and the risks involved in reordering. Not, however, groupedData: I was lucky enough to find out rather early that this was the most confusing feature in nlme, and not required. So my student script for nlme starts: whenever you read about groupedData, try to forget it and look for a different example. There is no groupedData in lme4. And a ++ for Rtips. I never understand, however, why this was possible, because I know of similar attempts that were blocked because people complained that "permission was required for quotes". The early days... Dieter -- View this message in context: http://n4.nabble.com/two-questions-for-R-beginners-tp1569384p1570701.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.
