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Re: st: has anyone used TDA?

From   "Markus Gangl" <>
Subject   Re: st: has anyone used TDA?
Date   Tue, 11 Jun 2002 14:52:36 +0200


TDA is capable of both reading and writing Stata 6 data files [my 
current version dates back to about summer last year]. Basically, it 
should be easy for you to get the TDA data into Stata format if you 
put the following commands into any text editor:

# load TDA system file;
rsys = [filename TDA system file];
# write Stata 6.0 .dta file;
wstata () = [filename];

Save this as a plain text document, then call TDA using

tda cf = [name of batch file]

in the MS-DOS editor window. You should get a log display on the 
screen that informs you about the process.

Things might be more complicated if you original TDA file is either 
a plain ASCII file or a TDA archive file. In the first case, however, 
there is no need to transform the data because you could use 
Stata to read the ASCII file directly. In the second case, things will 
be a bit more complicated, and you might want to check the TDA 
documentation at
for details about using the programme to extract selected variables 
from archive data (chapter 2.10 in the manuals).

Hope this helps,


Markus Gangl
Social Science Centre Berlin /
Wissenschaftszentrum Berlin
Research Unit 
Labour Market Policy and Employment
Reichpietschufer 50
D-10785 Berlin

Phone  +49.30.25491.141
Fax    +49.30.25491.222

> Date: Fri, 7 Jun 2002 16:48:56 +0100 (BST)
> From: =?iso-8859-1?q?Pamela=20Meadows?= <>
> Subject: st: has anyone used TDA?
> Dear listers
> I have a dataset which includes work history which is
> constructed as a TDA database file and which is only
> supplied in this format.  It is possible to download
> TDA from the Max Planck Institute in Berlin, but
> having looked at the website I found it quite hard to
> work out what I was going to have to do, especially as
> for the piece of research I am working on I only want
> some limited information from the survey about
> childcare use, and do not want to analyse the work
> history.  Has anyone used TDA? Can it be made to
> produce files in a format I could read into Stata? Any
> advice gratefully received.
> Pam Meadows
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