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Re: st: Re: looping and replacing values


From   Buzz Burhans <wsb2@cornell.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: looping and replacing values
Date   Fri, 01 Aug 2003 16:39:05 -0400

Thanks Michael

That is close, and I am about to try it, (trying to get a project finished before the weekend, so I really appreciate your timely help).

Anyway, it looks like your code would require the single obs for each panel to be the first one ??: {1},
and it is not necessarily there, sometimes it is the 7th, sometimes the 10th...

I am going to try this now.

Thanks again

Buzz Burhans
wsb2@cornell.edu


At 04:23 PM 8/1/03 -0400, you wrote:

How about:

foreach var of local Varts {
bysort farmid (`var'): replace `var'=`var'[1]
}

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message -----
From: "Buzz Burhans" <wsb2@cornell.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Friday, August 01, 2003 4:00 PM
Subject: st: looping and replacing values


> I wonder if someone could help me with the syntax below.
>
> I have panel data, long form, which has variables where only one
> observation contains a value within each panel, and the other observations
> for that panel and variable are missing
>
> I would like to loop over the panels and the variables and replace the
> missings for each panel/variable with the single existing observation for
> that panel that has a value. I used min, but it doesnt really matter if it
> is min etc, as there is only one value extant for each panel.
>
> There are however, a lot more variables than I show here, and I am quite
> unsuccesful at making the foreach loops work right.
>
> My attempts look like this, and I would appreciate any help.
>
> Thanks
>
> local Varts "CostCowM7toM12 CostCowQtr CostCWTYrly CostCWTM1toM6
> CostCWTM7toM12 CostCWTQtr "
> tokenize `Varts'
> levels farmid, local(levels)
> foreach l of local levels {
>
> syntax [varlist]
> foreach var of local Varts{
> replace `var' = min(`var')
>
> }
> }
>
>
> Buzz Burhans
> wsb2@cornell.edu
>
>
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>


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