Enum RateModel 

pub enum RateModel {
    Geometric {
        ratio: f64,
        resid: f64,
    },
    Power {
        exponent_s: f64,
        kl_theta: f64,
        resid: f64,
    },
}

A fitted decrease-rate model with its log-space residual sum of squares.

Variants

Geometric

Geometric decreases d_k ≍ ratio^k (Łojasiewicz exponent θ = 1/2, linear convergence of the gap). ratio = exp(slope of log d_k vs k).

Fields

ratio: f64

Geometric ratio r = exp(m), m = slope of log d_k against k.

resid: f64

Residual sum of squares of the log d_k-vs-k fit.

Power

Power-law decreases d_k ≍ k^{exponent_s} (Łojasiewicz exponent θ ∈ (1/2, 1), sublinear convergence). exponent_s is the raw (negative) log-log slope ŝ_raw; kl_theta = ŝ_raw/(2ŝ_raw+2) per (I’) in the module docs.

Fields

exponent_s: f64

Raw log-log slope ŝ_raw = slope of log d_k vs log k (negative on a converging loop; magnitude s = −exponent_s ∈ (2, ∞)).

kl_theta: f64

Recovered Łojasiewicz exponent θ̂ = ŝ_raw / (2ŝ_raw + 2).

resid: f64

Residual sum of squares of the log d_k-vs-log k fit.

Implementations

impl RateModel

pub fn resid(&self) -> f64

The log-space residual sum of squares of this fit (used for model selection).

Trait Implementations

impl Clone for RateModel

fn clone(&self) -> RateModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RateModel

impl Debug for RateModel

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

Formats the value using the given formatter.

impl PartialEq for RateModel

fn eq(&self, other: &RateModel) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RateModel