The SURVEYPHREG ProcedureOverviewGetting StartedSyntaxDetailsExamplesReferencesExamples: SURVEYPHREG ProcedureSubsections:115.1 Analysis of Clustered Data115.2 Stratification, Clustering, and Unequal Weights115.3 Domain Analysis115.4 Variance Estimation by Using Replicate Weights115.5 A Test of the Proportional Hazards Assumption by Using the Programming StatementsCopyright © SAS Institute Inc. All rights reserved.