Mplus Users Guide v6.. - Muthén & Muthén

Examples: Mixture Modeling With Cross-Sectional DataIn the model for class 1, the threshold of the latent class indicatorvariable u is set to a logit value of 15. In the model for class 2, thethreshold of the latent class indicator variable u is set to a logit value of–15. These logit values reflect that c is perfectly measured by u.Individuals in the non-complier class (class 1) have probability zero ofobserved compliance and individuals in the complier class (class 2) haveprobability one of observed compliance. The default estimator for thistype of analysis is maximum likelihood with robust standard errors. TheESTIMATOR option of the ANALYSIS command can be used to selecta different estimator. An explanation of the other commands can befound in Examples 7.1 and 7.23.EXAMPLE 7.25: ZERO-INFLATED POISSON REGRESSIONCARRIED OUT AS A TWO-CLASS MODELTITLE: this is an example of a zero-inflatedPoisson regression carried out as a twoclassmodelDATA: FILE IS ex3.8.dat;VARIABLE: NAMES ARE u1 x1 x3;COUNT IS u1;CLASSES = c (2);ANALYSIS: TYPE = MIXTURE;MODEL:%OVERALL%u1 ON x1 x3;c ON x1 x3;%c#1%[u1@-15];u1 ON x1@0 x3@0;OUTPUT: TECH1 TECH8;x1u1x3c183