Enum CubatureBuildError 

pub enum CubatureBuildError {
    SigmaGridMismatch {
        expected: usize,
        actual: usize,
    },
    ZeroIsotopes,
    ZeroTrainingDensities,
    TrainingDensityLength {
        expected: usize,
        actual: usize,
        index: usize,
    },
    AnchorLength {
        expected: usize,
        actual: usize,
    },
    LpInfeasible {
        row: usize,
    },
}

Errors from SparseEmpiricalCubaturePlan construction.

Variants

SigmaGridMismatch

Flat sigmas storage has the wrong total element count.

sigmas is stored row-major as sigmas[j * n_rows + ℓ] = σ_j(E'_ℓ), so the expected total length is k * n_rows.

Fields

expected: usize

Expected total element count (k * n_rows).

actual: usize

Actual sigmas.len().

ZeroIsotopes

Zero isotopes supplied — the cubature has no meaning for k = 0.

ZeroTrainingDensities

Zero training densities supplied — the LP construction requires at least one forward feature per row.

TrainingDensityLength

A training density vector has a length different from the isotope count.

Fields

expected: usize

Expected (k).

actual: usize

Actual (training_densities[i].len()).

index: usize

Offending index.

AnchorLength

The Jacobian anchor density has a length different from the isotope count.

Fields

expected: usize

Expected (k).

actual: usize

Actual.

LpInfeasible

The row-wise LP failed to produce a feasible solution. Should never fire on a well-formed problem because the uniform (non-sparse) weight is always feasible; if it does, it signals a numerical degeneracy (e.g., identical atoms in the row support) worth investigating.

Fields

row: usize

Row of the resolution matrix where the LP failed.

Trait Implementations

impl Debug for CubatureBuildError

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

Formats the value using the given formatter.

impl Display for CubatureBuildError

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

Formats the value using the given formatter.

impl Error for CubatureBuildError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.