Struct PeeledHull 

pub struct PeeledHull {
    pub facets: Vec<(Array1<f64>, f64)>,
    pub dim: usize,
}

A peeled convex hull represented as an intersection of half-spaces a^T x <= b. Facet normals a are unit-length direction vectors used to generate supporting halfspaces after iterative peeling. This is a robust, outlier-insensitive boundary representation.

Fields

facets: Vec<(Array1<f64>, f64)>

Each facet as (normal, offset). For any in-domain x: a^T x <= b for all facets.

dim: usize

Dimensionality of the space (number of predictors)

Implementations

impl PeeledHull

pub fn project_if_needed( &self, points: ArrayView2<'_, f64>, ) -> (Array2<f64>, usize)

Projects points onto the hull if needed. Returns corrected points and count projected.

pub fn is_inside(&self, x: ArrayView1<'_, f64>) -> bool

Fast in-domain test: a_i^T x <= b_i for all facets.

pub fn signed_distance(&self, x: ArrayView1<'_, f64>) -> f64

Compute the signed distance from a point to the peeled hull boundary.

Convention:

• Negative inside: exact distance to the nearest boundary facet.
• Positive outside: exact Euclidean distance to the polytope (via projection).
• Zero on the boundary.

Trait Implementations

impl Clone for PeeledHull

fn clone(&self) -> PeeledHull

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PeeledHull

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PeeledHull

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PeeledHull

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.