Kaplan-Meier Survival Estimates and Variance

Computes Kaplan-Meier survival estimates and their variances given risk and event counts.

Usage

KM_estimates(ybar, nbar, sig2w_multiplier = NULL)

Arguments

ybar

Vector of risk set sizes at each time point.

nbar

Vector of event counts at each time point.

sig2w_multiplier

Optional vector for variance calculation. If NULL, calculated internally.

Value

List with survival estimates and variances.