【摘要】 <正> 应用多元统计分析方法,对儿童少年的生长发育进行综合评价,是一个比较新的课题。目前国内外有关文献很少。我们通过对一个年龄组学生(10岁男生)的4项指标进行聚类分析,作出一个评价10岁男生生长发育水平的数学模型,对建立综合评价方法进行了一些探讨。更多还原

【Abstract】 A total number of 200 boys at ten years ofage were investigation from 9 primary schools inXiCheng destrict,Beijing,in Sept.1984.After theprincipal component analysis,four typical indicat-or…sheight,weight,chest circumference and PWC170indicators are chosen and used in hierachies clust-ering analysis.On the basis of the result of clusteranalysis,a mathematical model is set up to classi-fy ten-year-old boys into five grades.更多还原