cutpointr (version 0.7.3)

total_utility: Calculate the total utility

Description

Calculate the total utility from true positives, false positives, true negatives and false negatives. total_utility = utility_tp * tp + utility_tn * tn - cost_fp * fp - cost_fn * fn The inputs must be vectors of equal length.

Usage

total_utility(tp, fp, tn, fn, utility_tp = 1, utility_tn = 1, cost_fp = 1,
  cost_fn = 1, ...)

Arguments

tp

(numeric) number of true positives.

fp

(numeric) number of false positives.

tn

(numeric) number of true negatives.

fn

(numeric) number of false negatives.

utility_tp

(numeric) the utility of a true positive

utility_tn

(numeric) the utility of a true negative

cost_fp

(numeric) the cost of a false positive

cost_fn

(numeric) the cost of a false negative

...

for capturing additional arguments passed by method.

See Also

Other metric functions: F1_score, abs_d_ppv_npv, abs_d_sens_spec, accuracy, cohens_kappa, cutpoint, false_omission_rate, misclassification_cost, npv, odds_ratio, p_chisquared, plr, ppv, precision, prod_ppv_npv, prod_sens_spec, recall, risk_ratio, sensitivity, specificity, sum_ppv_npv, sum_sens_spec, tpr, tp, youden

Examples

# NOT RUN {
total_utility(10, 5, 20, 10, utility_tp = 3, utility_tn = 3, cost_fp = 1, cost_fn = 5)
total_utility(c(10, 8), c(5, 7), c(20, 12), c(10, 18),
              utility_tp = 3, utility_tn = 3, cost_fp = 1, cost_fn = 5)
# }