Fabian,
1. Beta-coefficients are calculated based on your regression. If you
want to include betas for every year, include annual dummies into your
regression.
For example:
xi: conver lag_log_ssegdp i.year if country==`i', noconstant
2. -r(beta)- is a matrix, and you are trying to save the matrix into
the variable, that is why you are getting an error r(109). Look for
-matrix subscription- in Help to see how to address individual
elements of the matrix.
Best wishes,
Vladimir.
2008/3/20, Fabian Nagel <[email protected]>:
> Dear Stata-community,
>
> I want to generate a new variable containing the current value of the
> beta-coefficient for each country, each year. The dataset includes 30
> countries for the period from 1980-2003.
>
> My last thought was:
>
> forvalues i=1/30 {
> reg conver lag_log_ssegdp if country==`i', noconstant
> betacoef
> generate beta=r(beta) if country==`i'
> }
>
> The problems I have now are:
>
> 1.
> I want the beta-coefficient to be calculated for each year AND each
> country and not only for each country, but right now I have no idea
> how I can achieve this.
>
> 2.
> When the loop generates beta=r(beta) I receive the r(109), type
> mismatch. Is there any possibility to save the beta-coefficients (for
> each year and each country) as a new variable?
>
> Thanks for any suggestion in advance,
> Fabian
>
>
> *
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>
--
__________________
Volodymyr Vakhitov
[email protected]
*
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