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Re: st: forvalues question


From   Susanne und Uli Kohler <suli.kohler@web.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: forvalues question
Date   Sun, 9 May 2004 21:10:48 +0200

In addition to the answers of others, note the package -mkdat- on 

http://www.sowi.uni-mannheim.de/ado

It is an ado-package to make retrivals of GSOEP data easier.

regards
uli


Am Freitag, 7. Mai 2004 22:31 schrieb Dasovic, Josip:
> I am working with the GSOEP (German Socioeconomic) panel survey.  I have a
> series of files for each of seventeen waves of the data, which are labeled
> such that the file denoting the first year (wave) of data begins with the
> letter a, the file denoting the second year (wave) of data begins with the
> letter b, etc..  What I would like to do is to open each of the seventeen
> files, keep the person id variable, and another variable, then save these
> new files using the same filename as the original, with one small
> exception--renaming the files with the year name (1984,1985, etc.) at the
> end of the filename, dropping the wave-denoting letters (a,b, etc.) from
> the filename altogether.  To make this easier, I have created a short
> forvalues loop:
>
> local wave "a b c d e f g h i j k l m n o p q r"
> local i=1985
>
> while `i'<=2001 {
> foreach x of local wave {
> use "C:\Directory\`x'filename.dta", clear
> keep personid `x'variable
> save "C:\Directory\filename`i'.dta", replace
> }
> }
>
> Once again, the successive year files begin with a letter matched to a
> particular year; afilename, bfilename, cfilename, etc., where a=1985,
> b=1986...r=2001.
>
> The short program above should open the file afilename.dta, keep the
> required variables, and save the new file as filename1985.dta, and so on.
>
> The problem is that Windows doesn't seem to recognize the `x' after the \
> symbol (in the third line of the program above).  Is there a way to get
> around this?  I assume that Windows is disturbed by the placement of the
> symbols \` beside each other.
>
> Stata gives me the following error message:
>
> file C:`x'filename.dta not found
>
> Thanks in advance,
>
> Josip
>
>
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