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Re: Antwort: st: detect unique values of onevariable into a new variable


From   Robert Budras <budras@wzb.eu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: Antwort: st: detect unique values of onevariable into a new variable
Date   Mon, 20 Dec 2010 18:20:45 +0100

I used the term "unique values" because STATA uses it when you type "codebook country". I don't remember the english word for "Variablen-Ausprägung", so i could not describe it better as in this example. Maybe you do?

Thank you for your time.

Am 20.12.2010 18:04, schrieb Richard Ochmann:
...
it's not entirely clear to me what you mean by "detect unique values".
does this give what you want?

***
gen country_unique = .
replace country_unique = Country if Country[_n] != Country[_n-1]
***

best,
rich

owner-statalist@hsphsun2.harvard.edu schrieb am 20.12.2010 17:56:07:

I would like to know if and how I can detect unique values of one
variable and write them into a new variable.

For Example:

Country

Australia
Australia
Belgium
Belgium
Germany

I need a variable which is:
unique = "Australia" "Belgium" "Germany"

I don't need:
unique = "Australia" "Australia" "Belgium" "Belgium" "Germany"

Thank you!
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