Sometimes varied ring systems are represented by a single point in the lower-left corner of the cluster map. Why does this happen?
Sometimes the profile of an answer set is such that the amount of similarity between a framework and the composite set of frameworks for the entire answer set is either so similar or so diverse that the pruning algorithm eliminates all screens associated with that framework. When this happens, the framework is represented by a point in the lower-left corner of the cluster map. When this happens for two or more frameworks, they are all placed at the same point in the lower-left corner of the cluster map . For more information, see Set Pruning Threshold. Try increasing the pruning threshold (e.g., above 25%) to separate the framework points.
