You need to specify that rg1 is a string variable (unless you have Stata 8).
gen str2 rg1=substr( rg, 1, 2)
^^^^
Scott
----- Original Message -----
From: "Rodrigo Brice�o" <[email protected]>
To: "Statalist (E-mail)" <[email protected]>
Sent: Friday, January 10, 2003 1:44 PM
Subject: st: Doubt about Index
> Hello friends of the list. I have a variable called rg which contains a
> large amount of numbers that represent certain income categories:
>
> 1. 01.01.01
> 2. 01.02.01
> 3. 01.02.04
> 4. 01.01.02.01
> and so on. I wan to extract the first two numbers in order to construct a
> new variable that tells me the main categories of income, so I will have 01,
> 02, 03 and 04. My variable is a string, so I think that I can use the substr
> function (gen rg1=substr( rg, 1,2)), but I'm getting some error 109 that
> talks about the inconsistency using numbers as strings. How can I solve
> this?
>
> Thanks for your time.
>
> Rodrigo
>
>
>
> *
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>
*
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