The SURVEYLOGISTIC Procedure
- Overview
- Getting Started
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Syntax
PROC SURVEYLOGISTIC Statement BY Statement CLASS Statement CLUSTER Statement CONTRAST Statement DOMAIN Statement EFFECT Statement ESTIMATE Statement FREQ Statement LSMEANS Statement LSMESTIMATE Statement MODEL Statement OUTPUT Statement REPWEIGHTS Statement SLICE Statement STORE Statement STRATA Statement TEST Statement UNITS Statement WEIGHT Statement -
Details
Missing Values Model Specification Model Fitting Survey Design Information Logistic Regression Models and Parameters Variance Estimation Domain Analysis Hypothesis Testing and Estimation Linear Predictor, Predicted Probability, and Confidence Limits Output Data Sets Displayed Output ODS Table Names ODS Graphics
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Examples
- References
Generalized Coefficient of Determination
Cox and Snell (1989, pp. 208–209) propose the following generalization of the coefficient of determination to a more general linear model:
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where 
is the likelihood of the intercept-only model, 
is the likelihood of the specified model, and 
is the sample size. The quantity 
achieves a maximum of less than 1 for discrete models, where the maximum is given by
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Nagelkerke (1991) proposes the following adjusted coefficient, which can achieve a maximum value of 1:
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Properties and interpretation of and 
are provided in Nagelkerke (1991). In the "Testing Global Null Hypothesis: BETA=0" table, is labeled as "RSquare" and is labeled as "Max-rescaled RSquare." Use the RSQUARE option to request and .