方法采用专家咨询打分法、离散趋势法、主成分分析法和聚类分析法进行分析。
Methods The methods of analysis were used by expert consulting graded approach, discrete tendency, principal component analysis and cluster analysis.
研究方法：主成分法，聚类分析法，比较法，模型法。
Methods of principle component analysis, clustering analysis, comparative analysis and modeling were employed.
主成分分析法和聚类分析法是藠头无机元素含量分析的有效方法。
The principal component analysis and cluster analysis could be perfectly applied in data processing in inorganic elements.
应用主成分分析法、系统聚类分析法将药材分成两类，并计算相似度。
Results Principal components analysis and clustering analysis were used in the identification of the samples and the similitude was calculated by computer.
应用主成分分析法、系统聚类分析法将药材分成两类，并计算相似度。
Results Principal components analysis and clustering analysis were used in the identification of the samples and the similitude was calculated by computer.
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