where is the error of following code to calculate confusionmat?

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Rafid Mustafiz
Rafid Mustafiz on 22 Sep 2018
Commented: Walter Roberson on 22 Sep 2018
predictedLabels = predict(classifier, testFeatures);
testLabels = testSet.Labels;
confMat = confusionmat(testLabels, predictedLabels);
confMat = bsxfun(@rdivide,confMat,sum(confMat,2))
error is: G and GHAT need to have same number of rows

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