In a single sensor system when the sample amount is constant, the estimation result of data fusion to subdivided into groups is superior to arithmetic average of single group.
基于该融合公式，证明了在单传感器系统中，当样本观测值一定时，分组数据融合的估计效果优于单组算术平均的估计效果；
Using unweighted pair group method with arithmetic average (UPGMA), 9 populations of Emmenopterys henryi were clustered into two groups, inner-province group and outer-province group.
利用算术加权平均数法（UPGMA）对香果树居群进行聚类，结果9个居群可分成浙江省内和省外两大类群。
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