st: calling variables

["Hans J. Baumgartner" <hbaumgartner@diw.de>]

Dear statalist,

I’ve got data that is coded as follows:

var_1_yymm , var_2_yymm and so on.

If I would like to call the variables var_1 between January 2000 and 
February2001 I though I could use

var_1_0001-var_1_0102

Unfortunately, this is not calling the expected vars but those vars 
located in the dataset between var_1_0001 and var_1_0102.

How can I address the desired vars?

N.B. I’ll call the vars within a loop that shifts the time period 
forwards and backwards. Hence, I cannot call the vars individually.

All comments are welcomed.

Many thanks in advance.

Hans



--
Hans J. Baumgartner DIW Berlin
German Institute for Economic Research
Dept. Public Economics
Königin-Luise-Str. 5; 14195 Berlin; Germany
Tel.: +49/30/89789-307
Fax.: +49/30/89789-114
http://www.diw.de
http://www.hansbaumgartner.de


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