MATLAB在統計學和機器學習工具包中提供了兩種畫誤差矩陣（Confusion matrix）的函數。

figure;
plotconfusion(YValidation,YPred)

figure;
cm = confusionchart(YValidation,YPred)
cm.Title = 'Confusion Matrix for Validation Data';
cm.RowSummary = 'row-normalized';
cm.ColumnSummary = 'column-normalized';