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From | "Martin Weiss" <martin.weiss1@gmx.de> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | AW: st: SUREG: Testing sum of coefficients |
Date | Thu, 25 Feb 2010 09:26:11 +0100 |
<> " is there a way to loop them since I have 88 equations with the same variable?" Sure you can: ************* sysuse auto, clear sureg (price foreign weight length turn) /// (mpg foreign weight length turn) /// (displacement foreign weight length turn) foreach var of varlist foreign weight length turn{ di in r "Now at: `var'" te _b[price:`var']+_b[mpg:`var']+_b[displacement:`var']=0 } //all jointly te [price=mpg=displacement], common ************* HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von mai7777 Gesendet: Donnerstag, 25. Februar 2010 07:24 An: statalist@hsphsun2.harvard.edu Betreff: Re: st: SUREG: Testing sum of coefficients Brilliant, many thanks! is there a way to loop them since I have 88 equations with the same variable? On Thu, Feb 25, 2010 at 1:12 AM, Maarten buis <maartenbuis@yahoo.co.uk> wrote: > --- On Thu, 25/2/10, mai7777 wrote: >> I'm running a SUREG, and in addition to testing that the >> coefficients are jointly equal to zero, I want to test >> that the sum of the coefficients on the same variable >> across all the equations in the system is equal to zero. > > *------------------------ begin example ------------------------ > sysuse auto, clear > sureg (price foreign weight length) /// > (mpg foreign weight) /// > (displacement foreign weight) > test _b[price:foreign]+_b[mpg:foreign]+_b[displacement:foreign]=0 > *-------------------------- end example ------------------------- > ( For more on how to use examples I sent to statalist see: > http://www.maartenbuis.nl/stata/exampleFAQ.html ) > > Hope this helps, > Maarten > > -------------------------- > Maarten L. Buis > Institut fuer Soziologie > Universitaet Tuebingen > Wilhelmstrasse 36 > 72074 Tuebingen > Germany > > http://www.maartenbuis.nl > -------------------------- > > > > > * > * 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/ > * * 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/ * * 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/