Bookmark and Share

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: marginsplot after xtmixed with square term


From   "Sun, Wensheng" <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: marginsplot after xtmixed with square term
Date   Wed, 13 Mar 2013 12:43:57 -0500

Please help! Marginsplot after xtmixed model contend square-term (wish to get concaved curves instead of straight lines). 
webuse acmemanuf
lowess y repl, by(pressure)
gen repl2=repl^2
gen id=.
replace id=temp if pressure==1
replace id=temp+3 if pressure==2
replace pressure=0 if pressure==1
replace pressure=1 if pressure==2
xtmixed y c.repl## i.pressure c.repl2##i.pressure  || id: repl, cov(uns) res(ind) mle variance
margins pressure, at(repl=(1(1)10))
marginsplot
 
I expected to get concaved curves from marginsplot like I usually got from modeling estimates with square terms; however, what I got here were two straight lines. Please help me to fix my codes.
 
Thank you very much!

Wensheng
*
*   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 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index