PBC Tour (3/4)

Calculating the accuracy and reloading training data

You have seen a visualization of splitting decisions made by an algorithm. If the mouse pointer is moved to the main panel of an already split node, the cursor changes to the "Disabled mode" where the user is not allowed to perform on the visualization of the node. You can calculate the accuracy of the computed tree with the menu option "Operation -> Calculate error rate" and the selection of "./TestData/segment.test".

Now load the same file ("segment.train") once more (this time, we can select this file from the "File"menu as a MRU file. You will get a fresh representation of the training data set and the decision tree on the right side is initialized. Now you will work in the main panel directly upon the visualization.