Struct MultiMetricMonitor 

pub struct MultiMetricMonitor { /* private fields */ }

A multi-metric early stopping monitor.

Monitors multiple metrics simultaneously and applies a policy (All or Any) to decide when to stop training.

Implementations

impl MultiMetricMonitor

pub fn new(policy: MultiMetricPolicy) -> Self

Create a new multi-metric monitor with the given policy.

pub fn add_metric( &mut self, name: impl Into<String>, config: EarlyStoppingConfig, )

Register a new metric to monitor.

pub fn step(&mut self, values: &[(String, f64)]) -> EarlyStoppingDecision

Report values for all metrics and return a combined decision.

Keys in values must match registered metric names. Metrics not present in values are skipped for that step.

pub fn get_monitor(&self, name: &str) -> Option<&EarlyStoppingMonitor>

Get an individual monitor by name.

pub fn num_metrics(&self) -> usize

Number of registered metrics.

pub fn summary(&self) -> String

Summary across all monitors.

Trait Implementations

impl Clone for MultiMetricMonitor

fn clone(&self) -> MultiMetricMonitor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MultiMetricMonitor

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

Formats the value using the given formatter.