MCC: Matthews correlation coefficient

Description Usage Arguments Examples

View source: R/measures_binaryclass.R

Description

Defined as (tp * tn - fp * fn) / sqrt((tp + fp) * (tp + fn) * (tn + fp) * (tn + fn)), denominator set to 1 if 0.

Usage

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MCC(truth, response, negative, positive)

Arguments

truth

vector of true values

response

vector of predicted values

negative

negative class

positive

positive class

Examples

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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
MCC(truth, response, negative, positive)

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