Struct LogLoss 

pub struct LogLoss { /* private fields */ }

Binary log loss (cross-entropy).

Trait Implementations

impl Clone for LogLoss

fn clone(&self) -> LogLoss

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogLoss

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

Formats the value using the given formatter.

impl Default for LogLoss

fn default() -> Self

Returns the “default value” for a type.

impl Metric for LogLoss

type Truth = bool

The ground-truth type for this metric.

type Prediction = f64

The prediction type for this metric.

fn update(&mut self, truth: bool, prediction: f64) -> Result<(), RillError>

Incorporate a single observation.

fn value(&self) -> Option<f64>

Current metric value, or None if not enough data has been seen.

fn samples_seen(&self) -> u64

How many observations have been incorporated.

fn reset(&mut self)

Reset the metric.