所述BRVQM类实现用于量化实值数据为有限数量的原型的全概率模型。该模型的设计和实现是鲁棒性的，因为数据可能有异常值被破坏，并可能有缺少的条目，在本程序中减弱了这种现象。-The BRVQM class implements a fully probabilistic model for quantizing real-valued data into a finite number of prototypes. The model is designed and implemented to be robust, as the data may be corrupted with outliers and may have missing entries.