Raw Message

Message-ID: <0IF900KA04RPD9@jhuml1.jhmi.edu>
Date: 2005-04-20T15:38:13Z
From: Ravi Varadhan
Subject: Keeping factors with zero occurrences in "table" output

An embedded and charset-unspecified text was scrubbed...
Name: not available
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20050420/642b12d3/attachment.pl