PBC Tour (4/4)

Interactive Classification

You should be in "Normal mode" which is indicated by the cursor shaped as an arrow. Based on the perception or on domain knowledge you may select an attribute by left-clicking on a segment. Then an arbitrary number of split points can be set within the segment by left-clicking the respective positions. An animated line appears on the clicked position and the original pixels of that line are redrawn in a magnified fashion at the bottom. There the user may set the exact split point by moving the slider. After all splits are set, right-click on the visualization of the data. A popup menu opens and there you can select the last option ("split attribute"). As a result, the split is performed and the decision tree on the right side is updated.
Now you may select another node of the tree by clicking it. A visualization of this node is invoked and you can proceed in the same way.
To switch to another visualization of the node (Bars, Circle Segments), select the menu Options-> Visualization.