Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | "Bontempo, Daniel E" <deb193@ku.edu> |
To | <statalist@hsphsun2.harvard.edu> |
Subject | st: estimation units for gllamm random coefficients |
Date | Tue, 18 May 2010 14:45:43 -0500 |
Hi all - I can see form the output below that the modeled units of the level-1 residual is log standard deviation, and if I exponentiate it and square it, I get the value in the output. But this does not seem to work for the level-2 variance. Is it in a different unit? gllamm model log likelihood = -998.21604 ------------------------------------------------------------------------ ------ mDx | Coef. Std. Err. z P>|z| [95% Conf. Interval] -------------+---------------------------------------------------------- ------ dualCond | 7.296223 .9465117 7.71 0.000 5.441094 9.151352 ageGrp | 2.188459 1.317523 1.66 0.097 -.3938394 4.770757 x_cond_age | 9.415988 1.385551 6.80 0.000 6.700357 12.13162 _cons | 9.217251 .9020915 10.22 0.000 7.449184 10.98532 ------------------------------------------------------------------------ ------ Variance at level 1 ------------------------------------------------------------------------ ------ 35.835373 (3.3563895) Variances and covariances of random effects ------------------------------------------------------------------------ ------ ***level 2 (subjID) var(1): 14.268077 (3.7821848) ------------------------------------------------------------------------ ------ . mat list e(b) e(b)[1,6] mDx: mDx: mDx: mDx: lns1: subj1: dualCond ageGrp x_cond_age _cons _cons _cons y1 7.2962233 2.1884589 9.4159876 9.2172507 1.7894677 3.7773108 . display exp( 1.7894677 )^2 35.83537 Thanks,-Daniel * * 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/