1．1采用农艺性状进行聚类分析 1936年，Mahalanobis提出广义距离（Generalized distance），进行数量性状多维指标的研究。1979年，刘来福在国内首次提出“遗传距离”的概念并介绍了数量性状遗传距离的测定方法。
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coefficient of generalized distance 广义距离系数
minkowski generalized distance minkowski广义距离
Generalized distance regression 广义距离回归
generalized distance measure 广义距离度量
Mahalanobis' generalized distance 马哈莱诺比斯的泛距离
generalized distance transformation 广义距离变换
Generalized Distance between Response Patterns 反应模式间的广义距离
generalized Cook distance 广义Cook统计量 ; 广义cook距离
A generalized distance coefficient based on information theory was given.
给出了一种基于信息理论的广义距离系数。
The character of generalized distance of equality sequence was discussed and the expression of first order recursive sequence about it was put forward.
文章通过对流体的速度场、电场和磁场中通量的解析，总结出了任意的矢量场通量的定义、一般表达式及一般计算方法。
A generalized distance coefficient based on information theory was given. The new information coefficient improved the increment of diversity and could be applied to cluster analysis.
给出了一种基于信息理论的广义距离系数。这一新的信息系数较离散增量信息系数有所改进，并可应用于聚类分析。
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