| survfit {survival} | R Documentation |
This function creates survival curves from either a formula (e.g. the Kaplan-Meier), a previously fitted Cox model, or a previously fitted accelerated failure time model.
survfit(formula, ...)
formula |
either a formula or a previously fitted model |
... |
other arguments to the specific method |
For details see the documentation for the appropriate method, i.e.,
?survfit.formula or ?survfit.coxph.
An object of class survfit containing one or more survival curves.
Older releases of the code also allowed the specification for
a single curve
to omit the right hand of the formula, i.e., ~ 1.
Handling this case required some non-standard and fairly fragile
manipulations, and this case is no longer supported.
Terry Therneau
survfit.formula,
survfit.coxph,
survfit.object, print.survfit,
plot.survfit, summary.survfit