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RE: st: RE: mat size
I had Stata Intercooled but now I´ve Stata/SE How can I increase mat size
Thanks a lot
From: "Nick Cox" <email@example.com>
Date: Wed, 1 Nov 2006 13:21:00 -0000
Subject: RE: st: RE: mat size
> Stata is telling you exactly what is wrong
> with your command.
> If you are using Intercooled Stata, that is
> the end of the road for that command, as you
> cannot increase -matsize- above 800.
> If you are using Stata/SE or Stata/MP, you
> can, and must, increase -matsize-.
> In any case, I am not clear that you are doing what
> Maarten recommended. I understand that he recommended
> -xtreg, fe-, and that you not use -xi:-.
> > I´ve tried this:
> > xi: xtreg perform i.codempr, fe i(codempr)
> > But the outcome is similar:
> > i.codempr _Icodempr_1-1203 (naturally coded; _Icodempr_1
> > omitted)
> > matsize too small
> > You have attempted to create a matrix with more than 800
> > rows or columns
> > or to fit a model with more than 800
> > variables plus ancillary parameters. You need to increase
> > matsize using
> > the
> > set matsize command; see help matsize.
> > r(908);
> > What I´m doing wrong?
> Maarten Buis
> > > Apparently you are trying to estimate a fixed effects regression by
> > > adding
> > > dummies. A better way of doing the fixed effects regression
> > is -xtreg-
> > > with
> > > the fe option. see: -help xtreg- and the entry for -xtreg- in the
> > > manual.
> > > I am trying to run a OLS regression with panel data (8240
> > observations)
> > > The explaining variable have 1203 categories
> > >
> > > I estimate the following model:
> > > set mem 50m
> > > set matsize 800
> > > xi: reg perform i.codempr
> > > but the outcome is:
> > >
> > > i.codempr _Icodempr_1-1203 (naturally coded; _Icodempr_1
> > > omitted)
> > > matsize too small
> > > You have attempted to create a matrix with more than 800 rows
> > > columns
> > > or to fit a model with more than 800
> > > variables plus ancillary parameters. You need to
> > increase matsize
> > > using
> > > the set matsize command; see help matsize.
> > > r(908);
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