gm: Geometric mean

In EU-ECDC/HerpesZosterModel: ZM

Description

The geometric mean is given by

GM = √(TP / (TP + FN) \cdot TN / (TN + FP))

where TP denotes true positives, TN denotes true negatives, FP denotes false positives, and FN denotes false negatives.

Usage

gm(tp, tn, fp, fn, adj = FALSE, ...)

Arguments

tp	True positives
tn	True negatives
fp	False positives
fn	False negatives
adj	If TRUE calculate the adjusted mean, defaults to FALSE

Details

The adjusted geometric mean is given by

AGM = (GM + (TN / (TN + FP)) + (FP + TN)) / (1 + FP + TN) if TP / (TP + FN) > 0

and 0 otherwise, where TP again denotes true positives, TN true negatives, FP false positives, and FN false negatives.

See Also

Other classification scores: auc, bcr, brier, dor, dp, err, et, f1, fai, fm, gain, gl, ignr, jacc, kappa, lr, mcc, op, rand, rt, rus, sm, ss, tss

Examples

gm(tp = 45, fp = 15, fn = 25, tn = 15)

EU-ECDC/HerpesZosterModel documentation built on July 7, 2019, 2:58 a.m.