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st: RE: Re: -hpfilter- question


From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   st: RE: Re: -hpfilter- question
Date   Fri, 13 Feb 2004 12:25:51 -0000

Almost certainly not. 

My code is, at best, applicable
if your variables are called 

country 
year 
myvar 

and will probably need changing
to match your variable names. 

Also, -hpfilter- is full of strange 
details, so I might easily be missing
something. 

Nick 
[email protected] 

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Giorgio
> Ricchiuti
> Sent: 13 February 2004 12:14
> To: [email protected]
> Subject: st: Re: -hpfilter- question
> 
> 
> Thank you Nick, 
> should I put your programm in my do file directly? 
> thanks a lot 
> Giorgio  
> 
> ----- Original Message ----- 
> From: "Nick Cox" <[email protected]>
> To: <[email protected]>
> Sent: Friday, February 13, 2004 1:01 PM
> Subject: st: -hpfilter- question
> 
> 
> > Giorgio Ricchiuti 
> > 
> > > I have to apply the Hoddrick-Prescott Filter Command to my Panel. 
> > > Unfortunately this command does not permit to use "by". Please, 
> > > Do you know how I can deal with this problem? I have 143 
> countries. 
> > > So create 143 variables and then merge them takes quiet 
> long time. 
> > 
> > Something like this may help. 
> > 
> > tsset country year 
> > 
> > gen hppredict = . 
> > 
> > levels country, local(C) 
> > qui foreach c of local C { 
> > hpfilter myvar if country == `c' 
> > replace hppredict = H_myvar if country == `c' 
> > drop H_myvar 
> > } 
> > 
> > See also 
> > http://www.stata.com/support/faqs/data/foreach.html 

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