Struct eval_metrics::classification::RocCurve

pub struct RocCurve<T: Scalar> {
    pub points: Vec<RocPoint<T>>,
    // some fields omitted
}

Represents a full roc curve

Fields

points: Vec<RocPoint<T>>

Roc curve points

Implementations

impl<T: Scalar> RocCurve<T>

pub fn compute(
    scores: &Vec<T>,
    labels: &Vec<bool>
) -> Result<RocCurve<T>, EvalError>

Computes the roc curve from the provided data

Arguments

• scores - vector of scores
• labels - vector of labels

Errors

An invalid input error will be returned if either scores or labels are empty or contain a single data point, or if their lengths do not match. An undefined metric error will be returned if scores contain any value that is not finite, if scores are all constant, or if labels are all constant.

Examples

use eval_metrics::classification::RocCurve;
let scores = vec![0.4, 0.7, 0.1, 0.3, 0.9];
let labels = vec![false, true, false, true, true];
let roc = RocCurve::compute(&scores, &labels)?;

pub fn auc(&self) -> T

Computes AUC from the roc curve

Trait Implementations

impl<T: Clone + Scalar> Clone for RocCurve<T>

fn clone(&self) -> RocCurve<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Scalar> Debug for RocCurve<T>

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

Formats the value using the given formatter.