Averaged proportion of correctly predicted labels with respect to the total number of labels for each instance, following the definition by Charte and Charte: https: / /journal.r-project.org / archive / 2015 - 2 / charte-charte.pdf. Fractions where the denominator becomes 0 are replaced with 1 before computing the average across all instances.
MultilabelACC(truth, response)matrix of true values
matrix of predicted values n = 20 set.seed(122) truth = matrix(sample(c(0,1), 60, replace = TRUE), 20, 3) response = matrix(sample(c(0,1), 60, replace = TRUE), 20, 3) MultilabelACC(truth, response)