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Re: st: Data Management


From   "Friedrich Huebler" <fhuebler@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Data Management
Date   Fri, 21 Nov 2008 12:18:06 -0500

Rijo,

bysort ID: list if City[1]!=City[2]

Friedrich

On Fri, Nov 21, 2008 at 12:08 PM, Rijo John <rmjohn@gmail.com> wrote:
> Hi statalist,
>
> I have a data set as follows
>
> ID  City          Year
> 1    City name   1
> 1    City name   2
>
>
> The data is suppose to have same city names for each ids for year 1
> and two. but there are many occasions where city for the year 1 is
> spelt differently thanthat for year 2. I just want to list out or edit
> those cities where city names are different for year 1 and 2 for the
> same ID. When I issue the following command
>
> bysort ID : list if  City!=City[_n-1]
>
> it lists all observations in the data whether or not the city is spelt
> differently in years one and two. Thats strange to me? Can someone
> tell what  I am doing wrong here?
>
> Thanks for your help.
>
> Rijo.
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