basehaz {survival} | R Documentation |
Compute the predicted survival curve for a Cox model.
basehaz(fit, newdata, centered=TRUE)
fit |
a coxph fit |
newdata |
a data frame containing one row for each predicted survival curve, said row contains the covariate values for that curve |
centered |
ignored if the |
This function is simply an alias for survfit
, which does the
actual work and has a richer set of options.
The alias exists only because some users look for predicted survival
estimates under this name.
The function returns a data frame containing the time
,
cumhaz
and optionally the strata (if the fitted Cox model used
a strata statement), which are copied the survfit
result.
Results for all covariates =0 are a standard form found in textbooks,
however, due to possible overflow in the exp() function this can be a
very bad idea in practice.
a data frame with variable names of hazard
, time
and
optionally strata
. The first is actually the cumulative hazard.