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Re: st: Good spatial manual


From   Natalie Trapp <natalie.trapp@zmaw.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Good spatial manual
Date   Wed, 02 Feb 2011 09:02:32 +0100

Dear Mr. Hughes,

I asked Mr. Drukker at the beginning of January when some of these commands will be available. He said soon, but did not say an exact time. However, I don't know about all of them.

Regards,
Natalie

Am 26/01/2011 14:42, schrieb Gordon Hughes:
The presentations listed in previous responses to this query are useful but they are certainly not manuals and they are far from comprehensive.

You can find a list of SSC spatial routines and related material via --net search spatial--. In most cases the help files provide relevant references, but I do not think that there is anything approaching a manual or text on how carry out spatial analysis in Stata. In part this is because the area is still developing quite rapidly, while many researchers have used other statistical environments for their work - Matlab, Gauss and R are heavily favoured. You could consider using --spwmatrix-- and --splagvar-- followed by --ivreg2-- to estimate a variety of spatial models via GMM/IV, but there are alternative routines available - e.g. Maurizio Pisati's routines.

Two additional remarks:

1. In most cases the routines are unable to cope with missing data, especially unbalanced panel data. As this is a characteristic feature of many spatial datasets, you need to think how to deal with it and choose routines that are designed to cope with it.

2. The number of spatial units (10s, 100s, 1000s, ...) is very important for the route that you take.

Finally, a general question for all readers. The Drukker presentation refer to forthcoming stata user modules --gs2sls-- --spreg-- and --spivreg--. Can anyone provide information on whether these are actually available and, if so, how one can obtain them? There is a completely different routine (really in testing form) from William MacMillan at the University of Michigan under the name --spreg-- .

Gordon Hughes


===================

Professor Gordon Hughes
Department of Economics
University of Edinburgh

E-mail : G.A.Hughes@ed.ac.uk

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