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Re: st: application of post-estimation commands
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: application of post-estimation commands
Date
Mon, 12 Sep 2011 08:51:32 +0100
You can save the coefficients to scalars e.g.
scalar intercept = _b[_cons]
scalar weightcoeff = _b[weight]
and use those scalars in calculations later in the same session,
referring to them by name. Make sure that you don't use the same names
for scalars as for any variables No function, in the Stata sense, is
involved here.
You can -update- your Stata to 8.2 for free. See
http://www.stata.com/support/faqs/res/history.html
Nick
On Mon, Sep 12, 2011 at 4:55 AM, <[email protected]> wrote:
> * I'm a beginner using Stata 8.1.
>
> * Regarding the following -
>
> sysuse auto, clear
>
> gen wtsq = weight^2
>
> regress mpg weight wtsq
>
> predict mpghat
>
> twoway (scatter mpg weight) (line mpghat weight, sort)
>
> * Let's say I'm happy with the above fitted model.
>
> * In future, how can I predict mpg as a function
>
> * of weight using the same equation from above?
>
> * In other words, I want to save the above
>
> * function and use it in different .dta files.
*
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