Dynamic display of hierarchical data in the form of a treemap. The invention also relates to methods for use of such polymorphic markers for predicting drug response to drugs for treating cardiovascular disease, or for monitoring the effectiveness of such drugs. In addition, each single unit of the filler gauge is made of plastic material that is flexible, bendable, and able to be trimmed so that various objects to be measured can be measured by suitable single units. Such supplemental burst cycles may be programmed in series through the thermostatic control, or manually produced by the user on command.