In a MCFA with the following code: CATEGORICAL = x1-x8 y1-y15 d1-d18; CLUSTER = clus; MISSING = ALL (999); ANALYSIS: TYPE = TWOLEVEL; MODEL: %WITHIN% F1 BY x1-x8; F2 BY y1-y15; F3 BY d1-d18; %BETWEEN% F By x1-x8 y1-y15 d1-d18; OUTPUT: TECH1 TECH8 ; I received the following error: FATAL ERROR THERE IS NOT ENOUGH MEMORY SPACE TO RUN THE PROGRAM ON THE CURRENT INPUT FILE. THE ANALYSIS REQUIRES 4 DIMENSIONS OF INTEGRATION RESULTING IN A TOTAL OF 0.50625E+05 INTEGRATION POINTS. ….
I omitted the code F2 BY y1-y15; from the model. It took about 5 hours for the model to converge. 1) what do you think the problem might be?I guess there might be something wrong with the set up of my datafile. 2)Does Mplus generates intraclass correlations or they should be computed manually? Best, Ali
With categorical outcomes and maximum likelihood estimation, numerical integration is required. See numerical integration in the user's guide for a discussion of this. You may want to try INTEGRATION = MONTECARLO (5000);