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Multigroup logistic regression
Categorical Data Modeling
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:
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;
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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