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: longitudinal data


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: longitudinal data
Date   Sun, 5 Jun 2011 07:22:36 +0100

Other ways to do it, assuming no missings on -died- :

bysort visit (died) : gen dead = died[_N]

bysort visit (time) : gen dead = died[_N]

Nick

On Sun, Jun 5, 2011 at 3:42 AM, Eric Booth <ebooth@ppri.tamu.edu> wrote:

> bys visit: egen everdead = max(died)

Tina Hernandez-Boussard wrote:

>> I have longitudinal data and I would like to flag a person as dead, =
>> although this information is only contained in their last observation
>>
>> I have created a count of the number of observations for a unique id
>>
>> by visit: gen time =3D _n
>>
>> this is what I am trying, but I am not getting correct results:
>>
>> by visit : gen dead =3D 1 if died =3D=3D 1
>>
>> I would like to have the flag dead=3D1 for all the rows of data for this =
>> person, even though they do not die until _n =3D=3D 5
>>
>> This is only capture the visit they died, and not all of their visits.
*
*   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