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主成分分析法应用中原始数据的标准化辨析
Standardization of Raw Data in the Application of Principal Component Analysis
【摘要】 主成分分析法对原始数据的标准化处理非常敏感,基于原始数据和标准化数据的主成分分析结果往往大相径庭。为了深入探讨主成分分析法应用于体育科学研究中如何对待原始数据的标准化问题,本文分析了原始数据的标准化处理对主成分分析结果的影响;结合体育工作中运用主成分分析的目的,讨论了原始数据的标准化处理在主成分分析法应用中的使用策略。
【Abstract】 Principal component analysis is very sensitive to the standardization of raw data,and the results of principal component analysis based on raw data and the standardized data are very different. In order to discuss how to deal with the standardization of original data in the application of principal component analysis method,this paper analyze the impact of standardization of original data on results of the principal component analysis. Combined with the the purpose for application of principal component analysis in sports,the strategies of using the standardization of original data for the application of principal component analysis method are discussed.
【Key words】 principal component analysis; standardization; covariance matrix; correlation coefficient matrix;
- 【文献出处】 安徽师范大学学报(自然科学版) ,Journal of Anhui Normal University(Natural Science) , 编辑部邮箱 ,2018年02期
- 【分类号】G80-3
- 【被引频次】18
- 【下载频次】697