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Assumptions
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The FMM Procedure (Experimental)

  • Overview Procedure Overview
    Basic Features Assumptions Notation for the Finite Mixture Model PROC FMM Contrasted with Other SAS Procedures
  • Getting Started Getting Started
    Mixture Modeling for Binomial Overdispersion: Student, Pearson, Beer, and Yeast Modeling Zero-Inflation: Is it Better to Fish Poorly or Not to Have Fished At All? Looking for Multiple Modes: Are Galaxies Clustered?
  • Syntax Procedure Syntax
    PROC FMM Statement BAYES Statement BY Statement CLASS Statement FREQ Statement ID Statement MODEL Statement OUTPUT Statement PERFORMANCE Statement PROBMODEL Statement RESTRICT Statement WEIGHT Statement
  • Details Procedure Details
    A Gentle Introduction to Finite Mixture Models Log-Likelihood Functions for Response Distributions Bayesian Analysis Parameterization of Model Effects Default Output ODS Table Names ODS Graphics
  • Examples Procedure Examples
    Modeling Mixing Probabilities: All Mice Are Created Equal, but Some Are More Equal The Usefulness of Custom Starting Values: When Do Cows Eat? Enforcing Homogeneity Constraints: Count and Dispersion—It Is All Over!
  • References
 
Assumptions

The FMM procedure makes the following assumptions in fitting statistical models:

  • The number of components in the finite mixture is known a priori and is not a parameter to be estimated.

  • The parameters of the components are distinct a priori.

  • The observations are uncorrelated.

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