[source] # Confusion Matrix A Confusion Matrix is a square matrix (table) that visualizes the true positives, false positives, true negatives, and false negatives of a set of predictions and their corresponding labels. **Estimator Compatibility:** Classifier, Anomaly Detector ## Parameters | # | Name | Default | Type | Description | |---|---|---|---|---| | 1 | classes| | array | The classes to include in the report. If null then all classes will be included. | ## Example ```php use Rubix\ML\CrossValidation\Reports\ConfusionMatrix; $report = new ConfusionMatrix([ 'dog', 'cat', 'turtle', ]); $result = $report->generate($predictions, $labels); echo $result; ``` ```json { "dog": { "dog": 12, "cat": 3, "turtle": 0 }, "cat": { "dog": 2, "cat": 9, "turtle": 1 }, "turtle": { "dog": 1, "cat": 0, "turtle": 11 } } ```