Enum SketchType 

#[non_exhaustive]
pub enum SketchType {
    Gaussian,
    Rademacher,
    CountSketch,
    SRHT,
}

Type of random projection matrix to use for subspace embedding.

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.

Gaussian

Dense Gaussian sketch: P[i][j] ~ N(0, 1/sub_dim).

Rademacher

Rademacher sketch: P[i][j] = +/-1/sqrt(sub_dim) with equal probability.

CountSketch

Count sketch: each full-dim coordinate maps to one sub-dim bucket with ±1 sign.

SRHT

Subsampled Randomized Hadamard Transform (approximate).

Trait Implementations

impl Clone for SketchType

fn clone(&self) -> SketchType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SketchType

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

Formats the value using the given formatter.

impl Default for SketchType

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SketchType

fn eq(&self, other: &SketchType) -> 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 Eq for SketchType

impl StructuralPartialEq for SketchType