El lun, 16-11-2009 a las 00:35 -0500, Data Analytics Corp. escribió:
Hi,
I have two question on how to create dummy variables. Suppose...
1. I have a time series of annual data, say from 1970 to 2000. How
do I create a dummy for the period 1975-1980 (1 for this period, 0
otherwise)?
series mydummy = (obs>=1975 && obs<=1980)
--
Ignacio Diaz-Emparanza
DEPARTAMENTO DE ECONOMÍA APLICADA III (ECONOMETRÍA Y ESTADÍSTICA)
UPV/EHU
Avda. Lehendakari Aguirre, 83 | 48015 BILBAO
T.: +34 946013732 | F.: +34 946013754
www.ea3.ehu.es