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From | Muhammad Anees <anees@aneconomist.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: r(3900) when doing xtabond2 |
Date | Fri, 18 May 2012 18:14:51 +0500 |
Donaubauer, This topic appeared many times and there are many possibilities what you got that warning. Please look it some search results on Statalist and also one here: http://www.stata.com/statalist/archive/2006-11/msg00185.html which appeared in 2010. I think it can give you a bit of hint to figure out the reasons. Thanking Anees On Fri, May 18, 2012 at 6:03 PM, <donaubaj@hsu-hh.de> wrote: > Dear statalist users, > > I started using Stata only about one week ago, so I am not really an expert, > but I try to be as specific about my problem as possible: > > I have a panel with 21 countries and 8 years, including 7 variables plus > time and cross section dummies. The panel is almost perfectly balanced, only > few observations are missing. I am using a Stata version with 32bit on a > laptop with 64 bit Windows and at a PC with 32 bit Windows. > > First, I tried to re-estimate the output that I produced with Eviews (mainly > panel estimations with cross section and/or period fixed effects). This > worked quite will, I managed to get exactly the same output as I did in > Eviews. But when I try to estimate the same model with xtabond2 I am facing > huge problems. Usually, I get the following error message: > > . xtabond2 LHS-variable all RHS-variables year*, gmm(list of endogenous RHS > variables) iv(year*) > > Favoring space over speed. To switch, type or click on mata: mata set > matafavor speed, perm. J(): 3900 unable to allocate > real <tmp>[268485,76710] > _Explode(): - function returned error > _ParseInsts(): - function returned error > xtabond2_mata(): - function returned error > <istmt>: - function returned error > r(3900); > > > Even xtabond does not work. Doing this, Stata returns "no observations" > (r(2000)). > > Unfortunately, I have no clue what could be wrong. I tried several options, > including dropping several variables from the model. I saw that other users > face similar problems. However, I could not find a viable solution. > > > Any help would be greatly appreciated. > > Thanks! > > Julian Donaubauer > > Helmut Schmidt University > Hamburg > > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ -- Best --------------------------- Muhammad Anees Assistant Professor/Programme Coordinator COMSATS Institute of Information Technology Attock 43600, Pakistan http://www.aneconomist.com * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/