The SURVEYPHREG Procedure
- Overview
- Getting Started
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Syntax
PROC SURVEYPHREG Statement BY Statement CLASS Statement CLUSTER Statement DOMAIN Statement ESTIMATE Statement FREQ Statement LSMEANS Statement LSMESTIMATE Statement MODEL Statement NLOPTIONS Statement OUTPUT Statement Programming Statements REPWEIGHTS Statement SLICE Statement STORE Statement STRATA Statement TEST Statement WEIGHT Statement -
Details
Notation and Estimation Failure Time Distribution Time and CLASS Variables Usage Partial Likelihood Function for the Cox Model Specifying the Sample Design Missing Values Variance Estimation Domain Analysis Hypothesis Tests, Confidence Intervals, and Residuals Output Data Sets Displayed Output ODS Table Names ODS Graphics
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Examples
- References
| Partial Likelihood Function for the Cox Model |
Let 
denote the 
distinct, ordered event times. Let 
denote the multiplicity of failures at 
; that is, is the size of the set 
of individuals that fail at . Let 
be the weight associated with the 
th observation unit in the 
th cluster in stratum 
. Using this notation, the pseudo-likelihood functions used in PROC SURVEYPHREG to estimate 
are described in the following sections.
denote the risk set just before the 
th ordered event time 
is 