A X B Cross-validation.
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How to implement A X B Cross-validation and get the confusion matrix. For example, 5 times 2-fold Cross-validation.
I used this code to implement k-fold only
mdl = fitcknn(inputs,targets);
partModel = crossval(mdl, 'KFold', 5); % 5-fold cross validation
Accuracy = 1 - kfoldLoss(partModel, 'LossFun', 'ClassifError');
[validationPredictions, ~] = kfoldPredict(partModel);
Conf_Mat=confusionmat(targets',validationPredictions);
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