qualia_core_db::solvers::learning::survival::kaplan_meier

Struct KaplanMeier

pub struct KaplanMeier {
    pub event_times: Vec<f64>,
    pub survival: Vec<f64>,
    pub at_risk: Vec<usize>,
    pub events: Vec<usize>,
}

Expand description

A fitted Kaplan–Meier estimator: a right-continuous step function.

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§event_times: Vec<f64>

Distinct event times, ascending.

§survival: Vec<f64>

Survival probability after each event time.

§at_risk: Vec<usize>

Number at risk at each event time.

§events: Vec<usize>

Number of events at each event time.

Implementations§

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impl KaplanMeier

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pub fn fit(times: &[f64], event: &[bool]) -> Result<Self, LearningError>

Fit from times and event flags (true = event/death observed, false = right-censored). Fails closed on length mismatch / empty input.

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

Estimated survival S(t) (right-continuous step). 1.0 before the first event time.

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pub fn median_survival(&self) -> Option<f64>

Median survival time — the first event time at which S(t) ≤ 0.5. None if the curve never drops to 0.5 (heavy censoring).

Trait Implementations§

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impl Clone for KaplanMeier

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fn clone(&self) -> KaplanMeier

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for KaplanMeier

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for KaplanMeier

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impl<S, A> Aggregate<Result<S, Error>> for A
where A: Aggregate<S>,

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fn from_shares<T>(iter: T) -> Result<A, Error>
where T: IntoIterator<Item = Result<S, Error>>,

Aggregate shares in an MPC protocol.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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