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st: no room to add more variables...

From   John Worrall <>
Subject   st: no room to add more variables...
Date   Mon, 7 May 2007 14:45:23 -0500 (CDT)


I have a panel dataset of about 3800 cases over 12 years (45625 
observations).  I'm estimating fixed effects models, so I assume that 
adds unit dummies.  I enter year dummies manually.  I also have some 
"growth cells" that are dummies (768 in total).  Altogether, my 
variables, unit dummies, year dummies, and growth cells = just shy of 
4600 variables.  My system has .99GB Ram.  The data file is 39873KB.  I 
have set maxvar, memory, and matsize to various sizes.  I either get 
the "no room to add more variables due to width" or it takes an 
eternity to run the model--longer than I want to wait.  Any ideas?  Do 
I need more memory?


John Worrall

John L. Worrall
Associate Professor
Program in Criminology
The University of Texas at Dallas
P.O Box 830688, GR 31
Richardson, TX 75083-0688
(972) 883-4893
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