Enum AloError 

pub enum AloError {
    InvalidInput {
        reason: String,
    },
    WeightInvalid {
        reason: String,
    },
    DesignDegenerate {
        reason: String,
    },
    InfluenceMatrixFailed {
        condition_number: f64,
    },
    LooComputationFailed {
        reason: String,
    },
}

Typed error variants for the ALO (approximate leave-one-out) diagnostics module.

Public entry points continue to return Result<_, EstimationError>; this enum is materialized at leaf sites and converted at the boundary via From<AloError> for EstimationError so error text remains byte-identical to the previous EstimationError::InvalidInput(format!(...)) / ModelIsIllConditioned { ... } output.

Variants

InvalidInput

Caller-supplied configuration is structurally invalid: dimension mismatch, non-finite inputs that are not weights/response, missing PIRLS / geometry artifacts, or out-of-range scalar parameters.

Fields

reason: String

WeightInvalid

IRLS weights or working response contain a non-finite entry, or the working response itself is invalid.

Fields

reason: String

DesignDegenerate

The dense design matrix required for ALO could not be materialized from the underlying PIRLS artifact (e.g. sparse-only export).

Fields

reason: String

InfluenceMatrixFailed

The penalized Hessian factorization failed, or downstream diagnostics produced NaN values that indicate the influence matrix is unusable.

Fields

condition_number: f64

LooComputationFailed

Per-observation ALO computation produced a non-finite value (variance, denominator, or corrected η̃) at convergence.

Fields

reason: String

Trait Implementations

impl Clone for AloError

fn clone(&self) -> AloError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AloError

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

Formats the value using the given formatter.

impl Display for AloError

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

Formats the value using the given formatter.

impl Error for AloError

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 From<AloError> for EstimationError

fn from(err: AloError) -> EstimationError

Converts to this type from the input type.

impl From<AloError> for String

fn from(err: AloError) -> String

Converts to this type from the input type.