[R] subsetting with by() or other function??

Brian S Cade brian_cade at usgs.gov
Thu Oct 13 17:48:16 CEST 2005


An embedded and charset-unspecified text was scrubbed...
Name: not available
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20051013/702a3d7a/attachment.pl


More information about the R-help mailing list