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本文采用主成分分析方法,对中草药中微量元素含量进行研究。通过SPSS10.0统计软件对相关原始数据进行标准化处理,并求出无量纲后数据的相关系数矩阵及其特征值、特征向量和贡献率。在此基础上,确定作为初始因子的主成分变量,并计算出各主成分分值及综合分值。最后根据综合分值对中草药微量元素含量高低做出了评价,为研制新的药物提供科学依据。
In this paper, the principal component analysis methods, trace elements in Chinese herbal medicine research. The SPSS10.0 statistical software was used to standardize the relevant original data, and the correlation coefficient matrix of dimensionless data and its eigenvalues, eigenvectors and contribution rates were obtained. Based on this, the principal component variables as the initial factors are determined and the scores of the principal components and the integrated scores are calculated. Finally, according to the comprehensive score on the level of trace elements in Chinese herbal medicine made an assessment for the development of new drugs to provide a scientific basis.