Three approaches to Multivariate quality control are introduced. The first approach is to control the mean vector and covariance matrix of multivariate population in terms of one statistic.
介绍三种对多指标的质量控制方法，第一种方法是用一个标量控制多变量总体的均值向量和协方差矩阵；
Multivariate analysis of the component data indicate that population Wenchuan is the most distinct.
精油组分的多变量分析得到汶川县的人工林与其它居群的相似性最小。
Multivariate analysis of the component data indicate that population Wenchuan is the most distinct.
精油组分的多变量分析得到汶川县的人工林与其它居群的相似性最小。
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