Then the basic concepts of principal component analysis and partial least square regression are studied, as well as their advantages and disadvantages.
引入了主成分分析与偏最小二乘回归等多元统计与回归方法，并分析了其基本思想与优缺点。
The paper discuss socioeconomic drive mechanism of land use change in Qianguo County by using the multivariate regression analysis method and the principal component analysis method.
运用多元回归分析法和主成分分析法，讨论了前郭县土地利用变化的社会经济驱动机制。
Principal component analysis and stepwise regression were employed to characterize availability of heavy metals, microbial responses and their effect factors in the studied soil.
利用主成分和逐步回归分析了影响土壤重金属的有效性及其微生物学效应的因素。
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