>On Fri, Feb 24, 2012 at 9:40 AM, David Winsemius <dwinsem...@comcast.net> >wrote: > > On Feb 23, 2012, at 3:27 PM, Hed Bar-Nissan wrote: > >> It's really weighting - it's just that my simplified example was too >> simplified >> Here is my real weight vector: >> > sc$W_FSCHWT >> [1] 14.8579 61.9528 3.0420 2.9929 5.1239 14.7507 2.7535 >> 2.2693 3.6658 8.6179 2.5926 2.5390 1.7354 2.9767 9.0477 >> 2.6589 3.4040 3.0519 >> .... > > > You should always convey the necessary complexity of the problem. > >> >> >> And still it should somehow set the case weight. >> I could multiply all by 10000 and use maybe your method but it would >> create such a bloated dataframe >> >> working with numeric only i could probably create weighted means >> >> But something simple as WEIGHTED BY would be nice. > > > The survey package by Thomas Lumley provides for a wide variety of weighted > analyses.
Yes. It doesn't do everything that SPSS WEIGHTED BY will do, but it does a lot. SPSS is more general partly because it cheats -- it doesn't always compute the right standard errors if the weights are sampling weights [SPSS now has some proper survey analysis commands, which do get the right standard errors, but are more limited] - thomas -- Thomas Lumley Professor of Biostatistics University of Auckland ______________________________________________ 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.
