

Adapting Monte carlo from WebNote 15 

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I’m getting the error THE POPULATION COVARIANCE MATRIX THAT YOU GAVE AS INPUT IS NOT POSITIVE DEFINITE AS IT SHOULD BE. I want to use count and continuous indicators with specified starting values and class sizes for 3 classes. The means/variances I want to use are 0.39(0.12) for the continuous variable and 4.73(7.3), 4.36(18.23), 5.31(35.22)and 9.52(58.37) for the count variables. Could you please help me figure out what’s going on? Thanks. ~Michelle Montecarlo: Names are u1u6 y; generate u2u6 (pi); count=u2u6 ; Genclasses = c(3); Classes = c(3); Nobservations = 500; Nrep = 1; Auxiliary = y(DU3STEP); Analysis: Type = Mixture; Model Population: %Overall% [y@0]; y@1; [c#1*0.5]; [c#2*0.3]; %c#1% [u1*0.1 u2u6*1]; [y*0]; %c#2% [u1*0.38 u2u6*4]; [y*5]; %c#3% [u1*0.62 u2u6*9]; [y*10]; Model: %Overall% [c#1*0.5]; [c#2*0.3]; [y] (1); y (2); ! This command is... %c#1% [u1*0.1 u2u6*1]; %c#2% [u1*0.38 u2u6*4]; %c#3% [u1*0.62 u2u6*9]; 


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