Enum ObjectiveError 

pub enum ObjectiveError {
    InvalidInput(String),
    ComputationError(String),
    ConfigError(String),
    SerializationError(String),
}

Errors that can occur during objective function operations.

This error type covers all failure modes when working with objective functions, including invalid input data, computation failures, configuration issues, and serialization problems.

Variants

InvalidInput(String)

Input data is invalid for the objective function.

This includes mismatched array lengths, non-finite values, or target values outside the valid range (e.g., non-binary targets for classification).

ComputationError(String)

An error occurred during loss/gradient computation.

This typically indicates numerical instability or overflow/underflow issues.

ConfigError(String)

Objective configuration is invalid or missing required parameters.

SerializationError(String)

Serialization or deserialization of objective configuration failed.

Trait Implementations

impl Debug for ObjectiveError

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

Formats the value using the given formatter.

impl Display for ObjectiveError

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

Formats the value using the given formatter.

impl Error for ObjectiveError

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<ObjectiveError> for GBRTError

fn from(source: ObjectiveError) -> Self

Converts to this type from the input type.