Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: RE: RE: Difference of values in the same column/variable
From
"Gokhan Yilmaz" <[email protected]>
To
<[email protected]>
Subject
st: RE: RE: Difference of values in the same column/variable
Date
Tue, 15 Nov 2011 08:35:27 -0500
Thank you very much Dr. Cox
Gokhan
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Nick Cox
Sent: Tuesday, November 15, 2011 4:58 AM
To: '[email protected]'
Subject: st: RE: Difference of values in the same column/variable
In your example
bysort time (group) : gen newvar = ewportnet - ewportnet[_n-1]
Nick
[email protected]
[email protected]
How can i create a new variable that is equal to the difference in ewportret
(see below table) between two groups in the same month?
For example: the first row of the newvar below would be equal to (.0375245-
.041679) and the second row would be equal to(.0397919- .0449738)
group time ewportret newvar
1 2007m4 .0375245
1 2007m5 .0397919
1 2007m6 -.0188678
0 2007m4 .041679
0 2007m5 .0449738
0 2007m6 -.0240277
*
* 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/