--- Neil asked:
> I want to create a single composite variable
> from 3 variables in order to estimate the
> combined effect of the 3 variables on the
> dependent variable
Neil:
Given the subject title I assume you want to
run a factor analysis, with only one factor,
save that as a new variable and run you
regression with that new variable. An example
on how to do this is given below.
*-----begin example-------
sysuse auto, clear
factor displacement weight length, factor(1)
predict size
reg mpg size
*-------end example-------
HTH,
Maarten
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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