FBeta_Score {MLmetrics}

F-Beta Score

Description

Compute the F-Beta Score

Usage

FBeta_Score(y_true, y_pred, positive = NULL, beta = 1)

Arguments

y_true

Ground truth (correct) 0-1 labels vector

y_pred

Predicted labels vector, as returned by a classifier

positive

An optional character string for the factor level that corresponds to a "positive" result

beta

Weight of precision in harmonic mean

Value

F-Beta Score

Examples

data(cars)
logreg <- glm(formula = vs ~ hp + wt,
              family = binomial(link = "logit"), data = mtcars)
pred <- ifelse(logreg$fitted.values < 0.5, 0, 1)
FBeta_Score(y_pred = pred, y_true = mtcars$vs, positive = "0", beta = 2)
FBeta_Score(y_pred = pred, y_true = mtcars$vs, positive = "1", beta = 2)