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Section 13.10 Glossary
- survival analysis
-
A set of methods for describing and predicting the time until an event of interest, often focused on lifetimes or durations.
- survival function
-
A function that maps from a time,
\(t\text{,}\) to the probability of surviving beyond
\(t\text{.}\)
- hazard function
-
A function that maps from
\(t\) to the fraction of cases that experience the event at
\(t\text{,}\) out of all cases that survive until
\(t\text{.}\)
- cumulative hazard function
-
The cumulative sum of the hazard function, often useful for visualization.
- weighted bootstrap
-
A form of resampling that uses sampling weights to correct for stratified sampling by simulating a representative sample.
- censored data
-
Data that is only partially known because the event of interest has not yet occurred or was unobserved.
- Kaplan-Meier estimation
-
A method for estimating survival and hazard functions in datasets with censored observations.
- cohort
-
A set of subjects with shared characteristics—like decade of birth—analyzed as a group.
