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: command in xttobit model: variance and covariance
From
House Wang <[email protected]>
To
[email protected]
Subject
st: command in xttobit model: variance and covariance
Date
Thu, 20 Oct 2011 16:07:39 -0500
The DV is a censored continuous variable (between 0 to 1). And the DV
may be lack of independence due to year.
I want to check whether there is intraclass correlation due to year (a
time variable).
The command I write is this:
xttobit dv, i(year) ll(0) ul(1)
But the results shows:
invalid syntax
r(198);
What is wrong with the command?
HINT: What I do in the xttobit model is close to xtmixed model for
linear regression as follows:
xtmixed dv || year:, variance covariance(unstructured)
Thanks a lot.
Jianying
*
* 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/