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st: RE: dummy variable name from a string variable


From   philippe van kerm <philippe.vankerm@ceps.lu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: dummy variable name from a string variable
Date   Fri, 13 Nov 2009 16:35:42 +0100

In addition to solutions already suggested, the -dummieslab- utility might be your friend here:

ssc describe dummieslab

For example

sysuse auto
encode make , gen(make2)
dummieslab make2
dummieslab make2 , template("cardummy_@")

(see the -dummieslab- help for variations on naming possibilities)

Philippe

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of tom j
> Sent: Friday, November 13, 2009 3:06 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: dummy variable name from a string variable
>
> I want to create 10 dummy variables based on one string variable
> "city", which lists the city codes (like NY) of 10 cities. I can do
> this simply by (after encoding the city variable):
>
> tabulate city, gen(citydummy)
>
>
> This would create citydummy1 to citydummy10. What I want is to suffix
> each dummy with city codes, listed in the variable 'city' , so I have
> the dummy variables named from, for example, citydummyNY to
> citydummyAM.
>
> The city variable has multiple occurrences of each code. I have had a
> look at -renvars- but I don't think that alone will solve my problem.
>
> Any ideas?
> Tom.
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