How do I change the class label of the confusion matrix?

Hi suppose I used the code below and the class label of the confusion matrix is 1,2,3. How to I change the class label to 'apple' , 'watermelon' and 'pear'?

cm = confusionchart([1 3 5; 2 4 6; 11 7 3]);
cm.Title = 'My Confusion Matrix Title';

Answer 1

[the cyclist]

According to the documentation:

cm = confusionchart([1 3 5; 2 4 6; 11 7 3],{'apple','watermelon','pear'});
cm.Title = 'My Confusion Matrix Title';

[Elysi Cochin]

How will it work for the below line

confusionchart(trueClass, predictedClass);

The below code is showing error

cm = confusionchart(trueClass, predictedClass, {'Class1', 'Class2'});

[the cyclist]

Your case has an important difference from the original question, in that they had the confusion matrix already calculated. So, it works a bit differently.

For you, it depends on what does your data look like. You can work on characters directly.

trueClass      = {'Class1','Class1','Class2','Class2'};
predictedClass = {'Class1','Class1','Class2','Class1'};

confusionchart(trueClass, predictedClass);

If your data are numeric, I think the easiest is to convert the input data into character arrays.