Compute Receiver operating characteristic (ROC)
roc_curve(fpr, tpr, thresholds, negative_count, total_count)
list - False positive rates for each individual ROC
list - True positive rates for each individual ROC
list - Thresholds used to compute the fpr and tpr
vector - Total number of samples corresponding to the negative case
vector - Total number of samples
list with the global fpr, tpr, and thresholds (decreasing)