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 Anonymous posted on Monday, May 23, 2011 - 7:59 am
I am trying to fit a multigroup logistic model with survey data (weights/stratification). The groups are countries (con). If I specify
the following core commands:

Data:
ngroups=10;

Variable:
grouping is con (1=a 2=b ...10=j);
usevariables are outcome age_c weight strata con;
categorical are outcome ;
weight is weight;
stratification is strata;

Analysis:
type=complex;
estimator= mlr;
link=logit;

Model:
anymood12 on age_c;

I get the error message:
*** ERROR in ANALYSIS command
ALGORITHM=INTEGRATION is not available for multiple group analysis.
Try using the KNOWNCLASS option for TYPE=MIXTURE.

Can anyone advise please? Thanks.
 Linda K. Muthen posted on Monday, May 23, 2011 - 9:12 am
Instead of the GROUPING option, you need to use the KNOWNCLASS and CLASSES options. This requires TYPE=MIXTURE. See Example 8.8 which shows how to set this up. When classes are known, it is the same as multiple groups based on an observed variable.
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