Enum RobustError 

pub enum RobustError {
    NonConvergence {
        iters: usize,
    },
    SingularDesign,
    DegenerateScale,
    InsufficientData {
        needed: usize,
        got: usize,
    },
    InvalidTuning {
        value: f64,
    },
    SubsampleFailure,
    DimensionMismatch {
        expected: usize,
        got: usize,
    },
    InvalidWeight {
        value: f64,
    },
    UnboundedLoss,
}

Errors returned by robust estimation routines.

Variants

NonConvergence

An iterative solver failed to converge within the iteration cap.

Fields

iters: usize

Iterations performed before giving up.

SingularDesign

The (weighted) design matrix is singular or rank-deficient.

DegenerateScale

The robust scale collapsed to zero (e.g. more than half the data tied).

InsufficientData

Not enough observations for the requested estimator.

Fields

needed: usize

Minimum number of observations required.

got: usize

Number of observations supplied.

InvalidTuning

A tuning constant was outside its valid range.

Fields

value: f64

The offending value.

SubsampleFailure

Subsampling (FAST-MCD / FAST-LTS) failed to find a valid subset.

DimensionMismatch

Input arrays have inconsistent lengths.

Fields

expected: usize

The length that was required.

got: usize

The length that was supplied.

InvalidWeight

A weight was negative or non-finite.

Fields

value: f64

The offending weight.

UnboundedLoss

A scale that requires a bounded loss (the S-scale) was given a loss with unbounded ρ (rho_sup() == None), which cannot define a high-breakdown scale.

Trait Implementations

impl Clone for RobustError

fn clone(&self) -> RobustError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RobustError

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

Formats the value using the given formatter.

impl Display for RobustError

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

Formats the value using the given formatter.

impl Error for RobustError

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.

impl PartialEq for RobustError

fn eq(&self, other: &RobustError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RobustError