1. A method for analyzing two or more data streams respectively generated from two or more components of a controllable process, the method comprising the steps of: obtaining first analysis results by performing a statistical analysis on each of a first data stream to generate first statistical results and a second data stream to generate second statistical results, the first analysis results including the first and second statistical results, individually; and generating second analysis results by combining at least a portion of the first statistical results with at least a portion of the second statistical results; and adjusting a controllable process based on both the first analysis results and the second analysis results.