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re: re: re:st: Creating variable based on time reference
From
Christopher Baum <[email protected]>
To
"[email protected]" <[email protected]>
Subject
re: re: re:st: Creating variable based on time reference
Date
Wed, 19 Oct 2011 22:42:02 -0400
<.>
To get the 'response time' categorical variable requested, the irecode() fu=
nction is handy:
bys group (datesubmitted): g delta =3D datesubmitted - datesubmitted[1]
g responsetime = 1 + irecode(delta, 1, 5)
. l
+-------------------------------------------------+
| datesub group datesu~d delta respon~e |
|-------------------------------------------------|
1. | 10/1/2011 1 18901 0 1 |
2. | 10/9/2011 1 18909 8 3 |
3. | 8/1/2011 2 18840 0 1 |
4. | 8/2/2011 2 18841 1 1 |
5. | 8/5/2011 2 18844 4 2 |
+-------------------------------------------------+
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html
An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
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