Methods We introduce a robust principal component regression based on MVT and LMS to detect outliers, and compare methods using a practical example.

方法采用基于MVT和LMS方法的一种稳健主成分回归方法来诊断异常点，并结合实例进行方法的对比。

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Based on the stepwise regression analysis and the principal component analysis, the soft-sensing method is presented to predict the quality of Chinese herb.

基于逐步回归分析与主成分分析，提出了用于中药质量预测的软测量方法。

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