extract_stratum: Extract Product-Limit Table for a Stratum
Description
Extracts the product-limit table from a survfit object
for a given stratum. Only survival::survfit()
objects are
supported.
Usage
extract_stratum(sf, index)
Value
A data frame of the product-limit table for the
given stratum.
Arguments
- sf
A survfit object.
- index
The index number of the strata to extract.