The SURVEYLOGISTIC Procedure

Domain Analysis

A DOMAIN statement requests that the procedure perform logistic regression analysis for each domain.

For a domain $\Omega$ , let $I_\Omega$ be the corresponding indicator variable:

$I_{\Omega }(h,i,j) = \left\{ \begin{array}{ll} 1 & \mbox{if observation $(h,i,j)$ belongs to $\Omega $} \\ 0 & \mbox{otherwise} \end{array} \right.$

Let

$v_{hij} = w_{hij}I_\Omega (h,i,j) = \left\{ \begin{array}{ll} w_{hij} & \mbox{if observation } (h,i,j) \mbox{ belongs to } \Omega \\ 0 & \mbox{otherwise} \end{array} \right.$

The regression in domain $\Omega$ uses v as the weight variable.

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