How to get the result of a classification tree in a matrix?

I made a Classification Tree, code:

mytree=ClassificationTree.fit(MyData,MyLables);

mytree.view('mode','graph');

My data has two classes and I want to get the result of prediction as a matrix that can show me every data row is belongs to which as an example.

data row predicted class

1 2

2 1

. .

. .

. .

how can i make this matrix?