GMEAN: G-mean

In measures: Performance Measures for Statistical Learning

Description

Geometric mean of recall and specificity.

Usage

GMEAN(truth, response, negative, positive)

Arguments

truth	vector of true values
response	vector of predicted values
negative	negative class
positive	positive class

References

He, H. & Garcia, E. A. (2009) *Learning from Imbalanced Data.* IEEE Transactions on Knowledge and Data Engineering, vol. 21, no. 9. pp. 1263-1284.

Examples

n = 20
set.seed(125)
truth = as.factor(sample(c(1,0), n, replace = TRUE))
probabilities = runif(n)
response = as.factor(as.numeric(probabilities > 0.5))
positive = 1
negative = 0
GMEAN(truth, response, negative, positive)

Example output

[1] 0.4020151

measures documentation built on Jan. 19, 2021, 5:08 p.m.