Struct Metrics 

pub struct Metrics {

    pub n_items: usize,
    pub n_missing: usize,
    pub n_predicted: usize,
    pub n_scored: usize,
    pub accuracy: Option<f64>,
    pub balanced_accuracy: Option<f64>,
    pub classes_in_gold: Vec<String>,
    pub per_class_recall: BTreeMap<String, f64>,
    pub nll: Option<f64>,
    pub brier_multiclass: Option<f64>,
    pub n_binary: usize,
    pub brier_binary: Option<f64>,
    pub ece: Option<f64>,
    pub reliability: Vec<ReliabilityBin>,
}

Every number computed for one stratum.

deny_unknown_fields: a fabricated extra metric must fail to load rather than ride along inside a report that verify then passes.

Fields

n_items: usize

Rows in the stratum.

n_missing: usize

Rows with neither a probability vector nor a label.

n_predicted: usize

Rows that produced a predicted slot.

n_scored: usize

Rows that produced a full probability vector.

accuracy: Option<f64>

correct / n_predicted; None when nothing was predicted.

balanced_accuracy: Option<f64>

Mean per-class recall over the classes present as gold.

classes_in_gold: Vec<String>

The classes balanced accuracy averaged over (the gold classes present).

per_class_recall: BTreeMap<String, f64>

Per-class recall for every gold class present.

nll: Option<f64>

Mean negative log-likelihood of the gold slot.

brier_multiclass: Option<f64>

Mean multiclass Brier score.

n_binary: usize

Scored rows that declared a positive class (the brier_binary denominator).

brier_binary: Option<f64>

Mean binary Brier score over the rows that declared a positive class.

ece: Option<f64>

Expected calibration error over bins equal-width confidence bins.

reliability: Vec<ReliabilityBin>

The per-bin tuples ECE is summed from.

Trait Implementations

impl Clone for Metrics

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metrics

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Metrics

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Metrics

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Metrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Metrics