Latent Class Analysis

Summary: Perform Latent Class Analysis with 5 clusters on selected behavioral risk factors from the Health Risk Survey dataset.

Code:

// Open data table
dt = Open("$Sample_Data/Health Risk Survey.jmp");
// Latent Class Analysis
Latent Class Analysis(
    Y(
        :"Drove 1+ times when drinking"n,
        :Smoked cigarette before 13,
        :Smoked daily for 30 days,
        :Had first drink before 13,
        :"Five+ drinks 1+ past 30 days"n,
        :Tried marijuana before 13,
        :"Used cocaine 1+ times in life"n,
        :"Sniffed glue 1+ times in life"n,
        :"Used meth 1+ times in life"n,
        :"Used ecstasy 1+ times in life"n,
        :Had sex before 13,
        :
        "Had sex with 4+ people in life"n
    ),
    Number of Clusters( 5 )
);