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Re: st: Identify observations within a variable

From   Nick Cox <>
To   "" <>
Subject   Re: st: Identify observations within a variable
Date   Mon, 22 Apr 2013 11:44:49 +0100

As I understand it you want to replace differing values by the most
commonly occurring value. This is just the mode and the -mode()-
function of the -egen- command should suffice.

It has supported string arguments too since birth.

That aside your question is an FAQ

FAQ     . . . . . .  Listing observations in a group that differ on a variable
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  N. J. Cox
        11/01   How do I list observations in a group that differ
                on a variable?

Although understanding the principles there will do no harm, my guess
is that you don't need it given -egen-'s -mode().


On 22 April 2013 11:26, Estrella Gomez <> wrote:

> I am cleanning a music dataset and one of the problems I have is that
> there are many cases in which there two different origin countries for
> the same artist. For instance, Shakira appears as from USA, Colombia,
> Netherlands and UK.
> I want to assign one unique origin country to each artist based on the
> number of records. I have 94,330,173 observations, so I can't do it
> manually.
> My problem is that I don't know how to tell Stata that I want to see
> those cases in which there are different countries for the same
> artist. Both are string variables. Once I identify those
> "wrong"observations,  I would select one unique country for each
> artist according to the number of Total sales, which is numerical
> variable
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