Struct MapUniquenessError 

pub struct MapUniquenessError {
    pub message: String,
    pub dominant_block: String,
    pub null_direction_index: usize,
    pub penalty_quadratic_form: f64,
}

Error produced when the MAP uniqueness condition ker(J^T W J) ∩ ker(S) = {0} is violated.

A null direction n of J^T W J with n^T S n = 0 means the posterior is flat along n: no likelihood curvature AND no penalty curvature, so the MAP estimate is non-unique. The error names the offending direction and the dominant block (the block whose columns have the largest component in n) so the caller can trace which smooth term contributed the unpenalised null direction.

Fields

message: String

Human-readable description of the failure, including the dominant block.

dominant_block: String

Name of the block whose columns dominate the null direction.

null_direction_index: usize

Index of the null direction (0-based among directions below tolerance).

penalty_quadratic_form: f64

n^T S n for the offending null direction (≈ 0.0).

Trait Implementations

impl Clone for MapUniquenessError

fn clone(&self) -> MapUniquenessError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MapUniquenessError

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

Formats the value using the given formatter.

impl Display for MapUniquenessError

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

Formats the value using the given formatter.