[R] how do I get means by factor?

Chris grover2160 at metrocast.net
Wed Feb 23 22:38:19 CET 2005


An embedded and charset-unspecified text was scrubbed...
Name: not available
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20050223/fe7fc750/attachment.pl


More information about the R-help mailing list