Enum BoostingError 

pub enum BoostingError {
    InvalidTargetValue {
        row: usize,
        value: f64,
    },
    UnsupportedClassificationClassCount(usize),
    InvalidLearningRate(f64),
    InvalidTopGradientFraction(f64),
    InvalidOtherGradientFraction(f64),
    SecondOrderTree(SecondOrderRegressionTreeError),
}

Variants

InvalidTargetValue

Fields

row: usize

value: f64

UnsupportedClassificationClassCount(usize)

InvalidLearningRate(f64)

InvalidTopGradientFraction(f64)

InvalidOtherGradientFraction(f64)

SecondOrderTree(SecondOrderRegressionTreeError)

Trait Implementations

impl Debug for BoostingError

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

Formats the value using the given formatter.

impl Display for BoostingError

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

Formats the value using the given formatter.

impl Error for BoostingError

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.