Message-ID: <CAPRmSMGwH7ZQHyrLknbOpwsETD6uxOTTaDkJyE=Y3q6BGasr+Q@mail.gmail.com>
Date: 2011-09-29T18:24:24Z
From: Gregorio R. Serrano
Subject: [R-es] Consultas sobre diferencias de Sumas Agregadas en R y en SQL.
In-Reply-To: <CAOF0weFHAy-3YdEG+a3a4EpLEziJyMbFbQcxu358NpmqxPAHRQ@mail.gmail.com>
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