present) columns for sensitivity, specificity, PPV, NPV, F1 score, detection rate, detection prevalence, balanced accuracy, FDR, FOR, FPR, FNR.  For
more than 2 classes, these statistics are provided for each class.</p>
    </div>
    <div id="details">
    <h2>Details</h2>
    <p>Used within confusion_matrix to calculate various confusion matrix
metrics. This is called by <code>confusion_matrix</code>, but if this is all you
want you can simply supply the table.</p>
<p>Suppose a 2x2 table with notation</p>