Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Identify observations within a variable


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
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?
http://www.stata.com/support/faqs/data-management/listing-observations-in-group/

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

Nick
njcoxstata@gmail.com


On 22 April 2013 11:26, Estrella Gomez <estrellastata@gmail.com> 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
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index