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本文应用Fuzzy聚类方法对上海郊区化肥施用情况进行了聚类分析。由相关系数法求得:R=(rij),其中:■而R~k=R~(2k)=R~*满足传递性,并由计算机自动从R~*阵中取出λ值,进行动态聚类,取得了比经验方法更满意的结果.
In this paper, the clustering analysis of fertilizer application in suburbs of Shanghai was carried out by Fuzzy clustering method. R = (rij), where: ■ R ~ k = R ~ (2k) = R ~ * satisfies the transitivity and the computer automatically takes out the value of λ from the array of R ~ * for dynamic Clustering has yielded more satisfactory results than empirical methods.