Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: using estimates coefficients
From
Jorge Eduardo Pérez Pérez <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: using estimates coefficients
Date
Wed, 21 Mar 2012 14:04:17 -0400
You can loop over the different models
-------------------------------------
sysuse auto, clear
* Estimate models and store each
reg price mpg
est store model1
reg weight mpg
est store model2
reg turn mpg
est store model3
* Create global=0 for the sum
glo sum=0
* Add the coefficients
forv i=1(1)3 {
* Restore model
est restore model`i'
* Add coefficient to sum
glo sum=${sum}+_b[mpg]
}
* Display sum
di "${sum}"
_______________________
Jorge Eduardo Pérez Pérez
On Wed, Mar 21, 2012 at 1:22 PM, Muhammad Anees <[email protected]>
wrote:
>
> Althoug I am not sure, I have tried this and it has worked;
>
> regress dv1=in1 in2 in3 in4
> display _b[in1]
> gen agea=-.00036117
> regress dv1=in1 in2 in3 in4
> display _b[in1]
> gen ageb=-.00036117
> gen sumab=agea+ageb
> display sumab
>
> and so on to include other coefficients from other models.
>
> I Hope this may be of help
>
> Anees
>
> On Wed, Mar 21, 2012 at 9:24 PM, Chiara Mussida <[email protected]>
> wrote:
> > Dear All,
> > I run (7) different equations, simple reg command. I now have to play
> > with the coefficient estimates of each equation, _b[name]
> >
> > Each of the 7 estimates have been carried out and stored with diffrent
> > names (model1,..., model7). I now must sum the coefficients of each
> > regressors of the different models, like the sum of _b[age] for all
> > the 7 models.
> >
> > How should I compute (manually) this sum across all the models?
> > _b[age] model1 + _b[age] model2 + ... + _b[age] model7
> >
> > I will have also to include the mean values of each characteristics,
> > but for this it is enough to gen an ad hoc variable for each case.
> >
> > Thanks
> > CHiara
> >
> >
> > --
> > Chiara Mussida
> > PhD candidate
> > Doctoral school of Economic Policy
> > Catholic University, Piacenza (Italy)
> > *
> > * 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/
>
>
*
* 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/