Cohen's \(\kappa\)

This method computes Cohen's \(\kappa\) of a confusion matrix.

Usage

cohen_kappa(conf_matrix)

Arguments

conf_matrix

The confusion matrix.

Value

The Cohen's \(\kappa\) of conf_matrix.

Examples

# create a confusion matrix
conf_matrix <- matrix(1:9, nrow = 3, ncol = 3)

# evaluate Cohen's kappa of `conf_matrix`
cohen_kappa(conf_matrix)
#> [1] -0.04166667