Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: repeated values of a variable

From   "Judet Roqueta" <[email protected]>
To   <[email protected]>
Subject   Re: st: repeated values of a variable
Date   Tue, 16 Mar 2004 21:46:39 -0500

Thank you so much.  That did the trick!

>>> [email protected] 03/16/04 9:33 PM >>>
At 09:15 PM 3/16/2004 -0500, Richard Williams wrote:
>At 08:59 PM 3/16/2004 -0500, Judet Roqueta wrote:
>>Is there a way to have Stata identify observations that have
>>values for a given variable?  Speficically, I want to trim my dataset
>>individuals that live in the same household using a household id
>>variable.  I want to get rid of those that live alone.  I tried using
>>the egen tag and egen group commands, but that did not help.
>Is this what you want?
>. egen x = count(id), by(id)
>. drop if x==1

To follow up -- if id is missing, x gets coded 0.  So, if you have
data on the id variable, and you also want such cases dropped, a better 
coding would be

. egen x = count(id), by(id)

. keep if x > 1

Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
FAX:    (574)288-4373
HOME:   (574)289-5227
EMAIL:  [email protected]
WWW (personal):
WWW (department):

*   For searches and help try:

*   For searches and help try:

© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index