Struct AtomSmoothSignificance 

pub struct AtomSmoothSignificance {
    pub log_e_nonconstant: Option<f64>,
}

Any-n-valid structure evidence that one atom’s inner smooth h_k(t) is genuinely non-constant (#1103): the same split-likelihood-ratio e-value the atom-birth gate uses (gam_terms::inference::structure_evidence), under the null H0 = “the atom’s decoder curve is constant in its latent coordinate”.

This replaces the earlier Lawley–Bartlett-corrected χ² test. That correction was a category error here: the penalized smooth’s null is effectively rank ≈ n, the first-order χ² is the wrong reference entirely, and an O(1/n) Bartlett factor (whose own stated size shift is ≈0.15%, flipping no admit/ demote decision) does not rescue it. The split-LRT e-value is finite-sample valid with NO regularity conditions — exactly the instrument for “does this atom earn a latent dimension”.

Fields

log_e_nonconstant: Option<f64>

log E for “the atom’s smooth is non-constant” (null = constant). A universal-inference split-likelihood-ratio e-value: E_{H0}[E] ≤ 1 exactly, so E ≥ 1/α certifies the non-constant alternative at level α, at any data-dependent stopping time. None when the split is degenerate (too few active rows / a fold with no curvature column).

Trait Implementations

impl Clone for AtomSmoothSignificance

fn clone(&self) -> AtomSmoothSignificance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AtomSmoothSignificance

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

Formats the value using the given formatter.