NPV {measures}

Negative predictive value

Description

Defined as: tn / (tn + fn).

Usage

NPV(truth, response, negative)

Arguments

truth

vector of true values

response

vector of predicted values

negative

negative class

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))
negative = 0
NPV(truth, response, negative)