食物；营养素；聚类分析_____食物；营养素；聚类分析

食物营养学价值类型特征聚类分析

http://www.100md.com 《河北北方学院学报》 2006年第1期

食物；营养素；聚类分析,,食物；营养素；聚类分析,1资料与方法,2结果,3讨论

     【摘要】目的：探讨系统聚类分析方法在食物营养学价值评价中的意义。方法：选取北方常见的20种食物，根据其8种主要营养素含量进行分层聚类分析。结果：依据欧氏距离平方和的大小确定食物间的相似性，通过分析距离测度值的变化将20种食物大体分为4类。结论：聚类分析可用来综合评价食物营养学特征，并将其合理归类。

    【关键词】食物；营养素；聚类分析

    Cluster Analysis on the Classification of Nutritive Value in 20 Foods

    SHI Baolin

    Hebei North University, Zhangjiakou, 075000, Hebei China

    【ABSTRACT】Objective: To investigate the significance of systematic cluster analysis in classification of nutritive value in foods.Methods: After selecting 20 normal foods in northern China, 8 nutrients were examined with hierarchical cluster analysis.Results: The 20 foods could be divided into 4 categories by squared Eudlidean distance.Conclusion: The cluster analysis can reveal the characteristics of nutritive value, and classify it into different categories reasonably.

    【KEY WORDS】Foods; Nutrients; Cluster analysis

    食物是人体获得所需热能和各种营养素的基本来源 ......

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