By using methods of cluster and correlation analysis, the correlation of the catch per unit effort (CPUE) to the sea surface salinity and the seawater temperatures of different depths were studied.

利用聚类和相关分析方法，研究了单位捕捞努力量渔获量与表层盐度及不同水层水温的关系。

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In the cluster analysis, the correlation matrix or the similarity matrix is directly used to make classification, but there is contradiction in itself, and paradox also occurs in the classification.

聚类分析直接利用相似矩阵或相关矩阵来分类，但它们本身存在矛盾，分类时也会出现矛盾。

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With partial new lines in Liaoning regional experiment in 2004 as entries, the correlation and cluster analysis on quality characters on japonica rice was made.

以辽宁省2004年区域试验部分新品系为试材，对辽宁水稻品质性状进行相关分析及品种聚类分析。

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