Struct KaplanMeier 

pub struct KaplanMeier { /* private fields */ }

Right-continuous Kaplan–Meier survival estimator Ŝ(t) = ∏_{t_j ≤ t}(1 − d_j/n_j).

Built from observed (time, event) pairs. To estimate the censoring survival G(t) = P(C > t) required by the IPCW Brier score, fit with the event indicator flipped (1 − event) so that censorings are the “events” of the reversed process — see KaplanMeier::fit_censoring.

Implementations

impl KaplanMeier

pub fn fit(time: &[f64], event: &[f64]) -> Self

Fit the survival of the process whose event indicator is event > 0.5.

pub fn fit_censoring(time: &[f64], event: &[f64]) -> Self

Fit the censoring survival G(t) = P(C > t) by reversing the event role: a censored observation (event ≤ 0.5) is an “event” of the censoring process and a death (event > 0.5) is a censoring of it.

pub fn at(&self, t: f64) -> f64

Right-continuous step lookup: Ŝ(t) = survival at the last event time ≤ t (and 1.0 before the first event).

Trait Implementations

impl Clone for KaplanMeier

fn clone(&self) -> KaplanMeier

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KaplanMeier

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for KaplanMeier

fn default() -> KaplanMeier

Returns the “default value” for a type.