第一吗步，采用聚类分析法，利用1990年、2000年资料，对山东省17地市进行社会经济类型的分类，均划分为3个类型。
First step, adopting Cluster Analysis Method and utilizing data in 1990 and 2000, 17 regions in Shandong Province has been classified into 3 types according to society - economic type.
本文利用模糊聚类分析的方法，对宁夏农业经济类型进行了划分，并得到了较为满意的结果。
Fuzzy clustering analysis was employed to divide Ningxia's agricultural economic types and got satisfactory results.
利用模糊数学中的聚类分析方法，对吉林省农业经济类型和农业气候进行划分。
Applying the method of fuzzy clustering, the author made an effective analysis of the agricultural economy type and agricultural economy climate in Jilin province.
利用模糊数学中的聚类分析方法，对吉林省农业经济类型和农业气候进行划分。
Applying the method of fuzzy clustering, the author made an effective analysis of the agricultural economy type and agricultural economy climate in Jilin province.
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