Struct Accuracy 

pub struct Accuracy;

Classification accuracy: the fraction of predictions that exactly match.

Comparison is exact-equality on the f64 values, so encode class labels as integral f64s (0.0, 1.0, …).

Trait Implementations

impl Clone for Accuracy

fn clone(&self) -> Accuracy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Accuracy

impl Debug for Accuracy

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

Formats the value using the given formatter.

impl Default for Accuracy

fn default() -> Accuracy

Returns the “default value” for a type.

impl Scorer for Accuracy

fn score(&self, y_true: &Array1<f64>, y_pred: &Array1<f64>) -> f64

Compute the score. y_true and y_pred are assumed equal length.

fn name(&self) -> &str

A short human-readable name (used to label CvResults columns).

fn greater_is_better(&self) -> bool

Whether a larger score is better (e.g. accuracy, R²) or smaller is better (e.g. MAE, MSE, RMSE). Defaults to true.