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 on April 23, and its replacement, statalist.org is already up and running.


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

RE: st: Keeping specific observations


From   Afif Naeem <afeef745@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Keeping specific observations
Date   Fri, 31 Aug 2012 12:46:52 -0400

Shouldnt "drop if v1 == . " work?

Afif

> From: Eleimon2.Gonis@uwe.ac.uk
> To: statalist@hsphsun2.harvard.edu
> Date: Fri, 31 Aug 2012 17:43:47 +0100
> Subject: st: Keeping specific observations
> 
> Dear Statalisters,
> 
> I would appreciate your help with the following conundrum. Assume I have a dataset that looks like this:
> 
> Year         ID        v1
> 2000         1          2
> 2001         1          2
> 2002         1          3
> 2000         2          3
> 2001         2          .
> 2002         2          3
> 2000         3          .
> 2001         3          .
> 2002         3          .
> 
> What I want to achieve is to only keep those individuals that appear with any non-missing values for v1 for any of the years in the dataset.
> 
> In other words, I don't think that a command: "keep if v1<." would do, because that would also take out the 2001 observation for the second individual (ID==2), which I'd like to remain in place.
> 
> Any ideas are welcome,
> Eleimon
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
 		 	   		  
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


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