identification in multivariate quality control 多元质量控制与诊断。
in a multivariate quality control process, a common statistic is hotelling's t2 . in order to detect small shift or trends sensitively, multivariate cumulative sum ( mcusum ) chart and multivariate exponentially weighted moving average control chart ( mewma ) are recommended 在多元质量控制中,通常采用hotelling统计西北工业大学博士学位论文摘要量、多元指数加权移动平均图(mewma)和多元累积和图(mcusum)。