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Message-ID: <AANLkTi=UDEasAG8mFwbuvAuypH0qryrchrjnbuVPhjoo@mail.gmail.com>
Date: 2011-03-21T20:04:21Z
From: Dennis Murphy
Subject: Computing row differences in new columns
In-Reply-To: <8CDB616C23BEBFE-168C-1035@web-mmc-m05.sysops.aol.com>

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