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Modeling and Multivariate Methods - SAS

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Chapter 16 Performing Choice <strong>Modeling</strong> 427<br />

Special Data Rules<br />

Figure 16.33 Contingency Analysis of Gender by Cluster for Pizza Example<br />

Figure 16.33 shows that Cluster 1 contains only males, Cluster 2 is half male <strong>and</strong> female, <strong>and</strong> Cluster 3 is<br />

all female. If desired, you could now refit <strong>and</strong> analyze the model with the addition of the Cluster variable.<br />

Special Data Rules<br />

Default choice set<br />

If in every trial you can choose any of the response profiles, you can omit the Profile ID Choices selection<br />

under Pick Role Variables in the Response Data section of the Choice Dialog Box. Then the Choice<br />

Model platform assumes that all choice profiles are available on each run.

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