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st: AW: dummy variable name from a string variable


From   "Martin Weiss" <[email protected]>
To   <[email protected]>
Subject   st: AW: dummy variable name from a string variable
Date   Fri, 13 Nov 2009 15:45:42 +0100

<> 

No need to -encode- beforehand (unless you want to)...



*************
clear*

input str2 citycode
"NY"
"LA"
"HO"
"SF"
"CH"
end

compress
list, noobs 

levelsof citycode

foreach lev in `r(levels)'{
	gen byte dummy`lev'=citycode=="`lev'"
}
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von tom j
Gesendet: Freitag, 13. November 2009 15:06
An: [email protected]
Betreff: 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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