Enum DirectionStrategy 

#[non_exhaustive]
pub enum DirectionStrategy {
    Hammersley,
    Uniform,
}

How to generate the n-dimensional direction vectors used by MEMD.

The Rehman-Mandic 2010 paper recommends a low-discrepancy (Hammersley/Halton) sequence over independent uniform sampling: it reaches the same projection coverage with fewer directions and is the published default. DirectionStrategy::Uniform is provided primarily for reproducibility comparisons.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Hammersley

Deterministic Hammersley point sequence mapped to the unit sphere via hyperspherical coordinates (Fang & Wang 1994; Rehman & Mandic 2010 §3). No RNG involved.

Uniform

Independent uniform samples on the unit sphere (Gaussian draw, normalized). Driven by MEMDConfig::random_seed.

Trait Implementations

impl Clone for DirectionStrategy

fn clone(&self) -> DirectionStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectionStrategy

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

Formats the value using the given formatter.

impl Default for DirectionStrategy

fn default() -> DirectionStrategy

Returns the “default value” for a type.

impl PartialEq for DirectionStrategy

fn eq(&self, other: &DirectionStrategy) -> 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 Copy for DirectionStrategy

impl Eq for DirectionStrategy

impl StructuralPartialEq for DirectionStrategy