False positives
Sum of misclassified observations in the positive class. Also called false alarms.
FP(truth, response, positive)
truth |
vector of true values |
response |
vector of predicted values |
positive |
positive class |
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 FP(truth, response, positive)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.