Firstly, classification index system was set up, then was selected in 22 original variables by the principal component analysis.
首先建立指标体系，并运用主成分分析法对22个类型划分指标进行筛选。
The result fo Principal Component Analysis (PCA) shows that the vegetative characters are the major characters in morphological classification of C.
主成分分析结果表明，营养器官是狗牙根形态分类的重要指标。
This paper proposes a method based on Principal Component Analysis (PCA) combined with improved K-means for action potential classification.
基于此，提出基于主元分析(pca)和改进K均值相结合的动作电位分类方法。
The electronic tongue was used in combination with principal component analysis (PCA) for the classification of tea samples from three quality grades.
电子舌测定结合主成分分析法(pca)的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。
The electronic tongue was used in combination with principal component analysis (PCA) for the classification of tea samples from three quality grades.
电子舌测定结合主成分分析法(pca)的结果显示，在第一和第二主成分的得分图上，电子舌可以区分特征十分相近的不同等级的普洱茶。
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