Dendrogram Visibility Filtering
The dendrogram also acts as a visibility filter to select which lines are shown in the Simulation View and which rows appear in the Variable Table. Click on the purple dot representing any node (or the dot at the tip of a subtree triangle) to restrict visibility to the leaf nodes associated with that subset of the tree. Non-visible nodes are grayed out. Figure 61 and Figure 62 show the results of limiting visibility to the subtrees of the upper and lower halves of the dendrogram, respectively. These examples clearly demonstrate that the upper and lower subtrees are grouping the results generated by input differences in the variable x23 into two categories. Inputs of -1 (color-coded blue) start higher on the y-axis and escalate slowly over a longer time period before peaking, while 0 and 1 (white and red, respectively) start lower on the y-axis and peak more rapidly. These two groups have distinctly different characteristics, which the analysis has captured.
As shown in Figure 63, more complex visibility selections can be constructed through a combination of dendrogram expansion operations and using control-click to add individual nodes to the visible set. Control-click functions as a toggle, so it flips the visibility state for any node with each click. The paths from the root to all visible nodes are darkly drawn, while the remaining paths, though still visible, are grayed out.