From macrakis at alum.mit.edu  Fri Feb 19 22:05:16 2010
From: macrakis at alum.mit.edu (Stavros Macrakis)
Date: Fri, 19 Feb 2010 16:05:16 -0500
Subject: [Rd] sample on data.frame
Message-ID: <8b356f881002191305p4830fc46w69de1f90b7880ae8@mail.gmail.com>

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[Rd] sample on data.frame
Stavros Macrakis