Struct MeasureJetMomentTable 

pub struct MeasureJetMomentTable {
    pub center: Array1<f64>,
    pub m0: Array1<f64>,
    pub m1: Array2<f64>,
    pub m2: Vec<Array2<f64>>,
}

Per-cell moment table: Gaussian-weighted coordinate moments of orders 0..=2 crossed with response channels, all centered at the cell’s reference point c.

Channel convention: channel 0 is the UNIT channel (g ≡ 1); further channels carry responses (y, and later y², PIRLS working z, w per the frame notes). The table itself never enforces the convention — it aggregates whatever the caller hands it — but jet_sufficient_stats reads q, a_mean, and the Gram off channel 0.

m2 is stored as the full (symmetric-by-construction) d×d second moment per channel.

Fields

center: Array1<f64>

Reference point c (length d).

m0: Array1<f64>

Per channel: Σ_i w_i g_i.

m1: Array2<f64>

Per channel × d: Σ_i w_i g_i (x_i − c).

m2: Vec<Array2<f64>>

Per channel: d×d matrix Σ_i w_i g_i (x_i − c)(x_i − c)ᵀ.

Implementations

impl MeasureJetMomentTable

pub fn zero(center: Array1<f64>, n_channels: usize) -> Self

The monoid identity at center: an all-zero table over n_channels channels. Merging it (at ANY center) into another table leaves that table’s moments unchanged up to the exact zero shift.

pub fn dim(&self) -> usize

Ambient dimension d of the cell.

pub fn n_channels(&self) -> usize

Number of response channels stored (channel 0 = unit by convention).

Trait Implementations

impl Clone for MeasureJetMomentTable

fn clone(&self) -> MeasureJetMomentTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeasureJetMomentTable

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

Formats the value using the given formatter.

impl PartialEq for MeasureJetMomentTable

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MeasureJetMomentTable