
ALT This is the screenshot of the output from mlarena's `evaluation` method for classification models. It includes key metrics such as AUC, MCC, precision, recall, F1, and F-beta (when beta is specified). The visual outputs feature a ROC-AUC curve (bottom left), a confusion matrix (bottom right), and a precision–recall–threshold plot at the top. In this top plot, precision (blue), recall (red), and F-beta (green, with β = 1 by default) are shown across different classification thresholds, with a vertical dotted line indicating the current threshold to highlight the trade-off. These visualizations are useful not only for technical diagnostics, but also for supporting discussions around threshold selection with domain experts (more on threshold optimization later).








