[R] Obtaining the first /or last record of a subject in a longitudinal study
Luwis Tapiwa Diya
siwulayid at gmail.com
Thu Aug 7 12:21:45 CEST 2008
An embedded and charset-unspecified text was scrubbed...
Name: not available
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20080807/0f4cda48/attachment.pl>
More information about the R-help
mailing list