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: Problem creating lag variable in panel data
From
Michael Riechert <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Problem creating lag variable in panel data
Date
Tue, 17 Dec 2013 19:02:52 +0000
Dear all,
I still facing problem while creating a lag variable within my panel data. I have
multiple cross sectional units (companies) and years. I used xtset to define
panel structure and then gen roi1=1.roi to create a 1-year lag variable
of the original variable roi. But the new variable only contains zeros. The
same is true for other variables. I am sure I did something wrong but have no
clue so far what it is. I appreciate every hint you will give me. Thank you!
Best regards,
Michael
*
* 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/