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: Event time creation


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Event time creation
Date   Fri, 19 Apr 2013 11:06:19 +0100

See also the recent thread starting at

http://www.stata.com/statalist/archive/2013-04/msg00533.html
Nick
njcoxstata@gmail.com


On 19 April 2013 09:15, Nick Cox <njcoxstata@gmail.com> wrote:
> egen benchmark  = total(time / (event == "Yes"))
> gen eventtime = time - benchmark
> expand 2
>
> There could be all sorts of complications you have not told us about.
>
> For example: These are really panel data.
>
> egen benchmark  = total(time / (event == "Yes"))  , by(id)
>
> For example: The -event- variable is really 0-1 and we are just seeing
> value labels.
>
> egen benchmark  = total(time / (event == 1))  , by(id)
>
> See also
>
> http://stackoverflow.com/questions/15298526/determine-time-period-since-event-up-to-n-leads-lags
>
> http://www.stata-journal.com/article.html?article=dm0055
>
> Nick
> njcoxstata@gmail.com
>
>
> On 19 April 2013 03:00, Auh, Jun Kyung <jauh14@gsb.columbia.edu> wrote:
>
>> I am wondering how I can create the event time variable. For example I want to create something like this:
>>
>> Time            Event   EventTime
>> 2000m1          No      -2
>> 2000m2          No      -1
>> 2000m3          Yes     0
>> 2000m4          No      1
>> 2000m5          No      2
>>
>> Furthermore, what I actually want to create is the following:
>>
>> Time         ID Event   EventTime
>> 2000m1          No      -2
>> 2000m1          No      -2
>> 2000m2          No      -1
>> 2000m2          No      -1
>> 2000m3          Yes     0
>> 2000m3          Yes     0
>> 2000m4          No      1
>> 2000m4          No      1
>> 2000m5          No      2
>> 2000m5          No      2
>>
*
*   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