Enum EvalError 

#[non_exhaustive]
pub enum EvalError {
    DatasetEmpty,
    InvalidFormat(String),
    InferenceFailed(String),
    IoError(String),
    ParseError(String),
    Numerical(String),
    Io(Error),
    MetricMismatch {
        expected: &'static str,
        got: String,
    },
}

Errors that can occur during model evaluation.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

DatasetEmpty

The provided dataset contains no examples.

InvalidFormat(String)

Input data has an unexpected or malformed format.

InferenceFailed(String)

The model inference step failed.

IoError(String)

An I/O error with a human-readable message (legacy string form).

ParseError(String)

Parsing of a value (e.g. JSON field, integer) failed.

Numerical(String)

A numerical invariant was violated (NaN, divide-by-zero, overflow).

Io(Error)

An I/O error bubbled up from the standard library.

Preferred over EvalError::IoError for automatic ?-propagation of std::io::Error values.

MetricMismatch

The caller supplied data with the wrong metric shape or type.

Fields

expected: &'static str

Human-readable description of what was expected.

got: String

Human-readable description of what was actually provided.

Trait Implementations

impl Debug for EvalError

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

Formats the value using the given formatter.

impl Display for EvalError

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

Formats the value using the given formatter.

impl Error for EvalError

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<Error> for EvalError

fn from(source: Error) -> Self

Converts to this type from the input type.