An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20100503/c4584b60/attachment.pl>
/ Operator not meaningful for factors
1 message · jim holtman
1 message · jim holtman
An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20100503/c4584b60/attachment.pl>