Re: st: RE: How to 'predict' residual by region? Seasonal adjustment?

[Galina An <ang@kenyon.edu>]

Great! Thank you very much, Kieran!
Galina

Kieran McCaul wrote:
> You need modify the code that Richard suggested earlier.
>
>
> gen r == .
> levelsof region_code, local(levels)
> foreach levl of local levels {
>         reg migration t4 t2 t3 if region_code == `levl'
>         predict x, resid
>         replace r = x if region_code == `levl'
>         drop x
> }
>
>
> ______________________________________________
> Kieran McCaul MPH PhD
> WA Centre for Health & Ageing (M573)
> University of Western Australia
> Level 6, Ainslie House
> 48 Murray St
> Perth 6000
> Phone: (08) 9224-2140
> Phone: -61-8-9224-2140
> email: kamccaul@meddent.uwa.edu.au
> http://myprofile.cos.com/mccaul 
> _______________________________________________
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Galina An
> Sent: Friday, 8 August 2008 5:07 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: How to 'predict' residual by region? Seasonal adjustment?
>
> Dear stata users,
> I have another related question. I need to 'predict' residual by region.
>
> When I run the following code it only uses the coefficients from the 
> last regression to predict residuals:
>
> by region: reg  migration t2 t3 t4
> predict  r,  resid
>
> if I try to do the loop, it says that r is already defined:
>
> levelsof region_code, local(levels)
> foreach levl of local levels {
>         reg migration t4 t2 t3 if region_code == `levl'
>        predict r, resid
> }
>
> Also, does anybody know a good seasonal adjustment procedure in Stata?
> Thank you!
>
>   

--
Galina An
Assistant Professor
Economics Department
Kenyon College

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