The CVRP is a java-based source library with approximately 40,000 lines of code providing functionality to the GrammarVis and MIVAC systems. The CVRP provides support for loading and saving datasets, and calculating statistics on or applying data mining techniques to the dataset. The CVRP library can also perform grammar derivations, provide support for constructing graphical user interface objects, and provides support for "data probing" of a visualization. Both implement all of the research visualizations and data mining concepts developed within the IVPR.