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Re: AW: st: Grouping variables
From
Eric Booth <[email protected]>
To
[email protected]
Subject
Re: AW: st: Grouping variables
Date
Fri, 5 Mar 2010 09:13:17 -0600
>
if you've got more than 10 cities that your assigning to a province, inlist() will hit its limit, but you can use a loop:
**
g province = ""
local cities b c d h i j k l m n o p q r s t
foreach c of local cities {
replace province = "a" if city=="`c'"
}
**
~ Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
Office: +979.845.6754
On Mar 5, 2010, at 7:26 AM, Martin Weiss wrote:
>
> <>
>
> "
>
> gen province=a if (city=="b"|city=="c"|city=="d")
> replace province=b if (city=="e"|city=="f"|city=="g")
>
> "
>
>
>
> Those province identifiers would have to carry quotation marks around them:
>
>
> *************
> clear*
> inp str1 city
> a
> b
> c
> d
> e
> f
> g
> end
>
> gen str1 province="a" if inlist(city, "b","c","d")
> replace province="b" if inlist(city, "e","f","g")
>
> list, noo
> *************
>
> Better still, assign numeric identifiers, and use a -value label- to
> represent the strings...
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Katya Mauff
> Gesendet: Freitag, 5. März 2010 14:00
> An: [email protected]
> Betreff: Re: st: Grouping variables
>
> Dear Alejandra
>
> Try using an if statement. So for example:
>
> gen province=a if (city=="b"|city=="c"|city=="d")
> replace province=b if (city=="e"|city=="f"|city=="g")
>
> etc.
>
> I know it's slightly tedious, esp if you have several cities/provinces.
> Perhaps someone else can come up with a quicker way to do it.
>
>
>
>
>>>> <[email protected]> 2010/03/05 02:47 PM >>>
> Dear Statalits,
> In my database I have a variable, called "city" which represent firms'
> main base. It is a string variable that I've already encoded in an
> another.
> I have a lot of other information about the firms and I need to work at a
> more aggregated level, for instance "province", could you please tell me
> how to assign different cities to one province?
> Thanks in advance.
> Best regards,
> Alejandra
>
> *
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