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st: mvsumm

From   Kit Baum <>
Subject   st: mvsumm
Date   Wed, 23 Jun 2004 16:59:59 -0400

KK recently wrote that his attempt to use mvsumm on a 600 000 obs panel with 20 000+ unique ids failed due to 'too many values'. The authors have recently been illuminated on this issue by StataCorp staff, who warned that using -levels- or its predecessor -levels7- was going to impose a constraint: the number of groups supported by -tabulate- (3 000 in Intercooled, 12 000 in SE). At some point the authors will probably take this advice and rewrite -mvsumm- (and its relative -mvcorr-). For now, as a workaround, it should be possible to massage chunks of the dataset that contain fewer than 3 000 (12 000) panel ids.


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