kumulant
com.eignex.kumulant/stat/score/AucResult

AucResult

@Serializable
@SerialName(value = "AucResult")
data class AucResult(val auc: Double, val totalPositives: Double, val totalNegatives: Double, val positives: DoubleArray, val negatives: DoubleArray, val lowerBound: Double, val upperBound: Double) : Result(source)

AUC snapshot with the per-bin counts needed for merge. auc is NaN until at least one positive and one negative have been observed; consult totalPositives / totalNegatives to detect that case.

totalPositives and totalNegatives are the sums of positives and negatives respectively; they are reported for convenience, not tracked independently. Merge folds in the per-bin arrays only and recomputes the totals, so a hand-built result whose totals disagree with its bins contributes its bins and its bins alone.

Constructors

AucResult

constructor(auc: Double, totalPositives: Double, totalNegatives: Double, positives: DoubleArray, negatives: DoubleArray, lowerBound: Double, upperBound: Double)(source)

Properties

auc

val auc: Double(source)

Estimated ROC area under curve at read time.

lowerBound

val lowerBound: Double(source)

Inclusive lower bound on the score range.

negatives

val negatives: DoubleArray(source)

Per-bin negative weights, parallel to positives.

numBins

val numBins: Int(source)

Number of histogram bins (same length as positives / negatives).

positives

val positives: DoubleArray(source)

Per-bin positive weights, parallel to negatives.

totalNegatives

val totalNegatives: Double(source)

Cumulative negative-label weight observed across the stream.

totalPositives

val totalPositives: Double(source)

Cumulative positive-label weight observed across the stream.

upperBound

val upperBound: Double(source)

Inclusive upper bound on the score range.

Functions

equals

open operator override fun equals(other: Any?): Boolean(source)

hashCode

open override fun hashCode(): Int(source)