Struct Shapelet 

#[non_exhaustive]
pub struct Shapelet {
    pub values: Vec<f64>,
    pub series_idx: usize,
    pub start: usize,
    pub length: usize,
    pub quality: f64,
}

A discovered shapelet: a z-normalized discriminative subsequence plus its provenance in the training set.

The values are stored already z-normalized so that shapelet_distance (and downstream transform/predict paths) never re-normalize the shapelet against test statistics.

quality is a placeholder here (0.0); it is populated by the discovery phase (Phase 58) with a discriminative score (higher = better).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

values: Vec<f64>

Z-normalized subsequence values.

series_idx: usize

Index of the source training series this shapelet was extracted from.

start: usize

Start offset of the subsequence within the source series.

length: usize

Length L of the subsequence.

quality: f64

Discriminative quality score (higher = better). 0.0 until set in discovery.

Implementations

impl Shapelet

pub fn from_source( series: &[f64], series_idx: usize, start: usize, length: usize, ) -> Result<Self, FdarError>

Build a shapelet from a source series slice, z-normalizing the window series[start .. start + length] and recording provenance.

quality is initialized to 0.0 (set later during discovery).

Errors

Returns FdarError::InvalidDimension if length == 0 or the window [start, start + length) does not lie within series.

pub fn len(&self) -> usize

Length L of the shapelet.

pub fn is_empty(&self) -> bool

Whether the shapelet has zero length.

Trait Implementations

impl Clone for Shapelet

fn clone(&self) -> Shapelet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Shapelet

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

Formats the value using the given formatter.

impl PartialEq for Shapelet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Shapelet