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From | sbs <sbsamblanet@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: estat icc |
Date | Wed, 30 Oct 2013 14:06:12 -0700 (PDT) |
Hello, I am attempting to use the postestimation command "estat icc" after using xtmixed for a mixed model. However, each of my attempts ends with this error: . estat icc invalid subcommand icc r(321); ------------------------------------------------------------------------------- search for r(321) (manual: [R] search) ------------------------------------------------------------------------------- Keywords: r(321) Search: (1) Official help files, FAQs, Examples, SJs, and STBs Search of official help files, FAQs, Examples, SJs, and STBs [P] error . . . . . . . . . . . . . . . . . . . . . . . . Return code 321 requested action not valid after most recent estimation command; This message can be produced by predict or test and indicates that the requested action cannot be performed. (end of search) I am confused by this error since I found the estat icc command in documentation specific to xtmixed postestimations published by Stata. Specifically, the documentation says: estat icc displays the intraclass correlation for pairs of responses at each nested level of the model. Intraclass correlations are available for random-intercept models or for random-coefficient models conditional on random-effects covariates being equal to zero. They are not available for crossed-effects models or with residual error structures other than independent structures. Is there some reason why I would not be able to use estat icc? I am using Stata 12. Thank you for your help. -- View this message in context: http://statalist.1588530.n2.nabble.com/estat-icc-tp7580448.html Sent from the Statalist mailing list archive at Nabble.com. * * 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/