KAPPA {measures}

Cohen's kappa

Description

Defined as: 1 - (1 - p0) / (1 - pe). With: p0 = 'observed frequency of agreement' and pe = 'expected agremeent frequency under independence

Usage

KAPPA(truth, response)

Arguments

truth

vector of true values

response

vector of predicted values n = 20 set.seed(122) truth = as.factor(sample(c(1,2,3), n, replace = TRUE)) response = as.factor(sample(c(1,2,3), n, repla KAPPA(truth, response)