In this paper, cluster centre and the distance from point to the cluster centre was defined, and a dynamic analysis method for plane point set was put forword.

本文定义了聚类中心以及点到聚类中心的距离，提出了一种平面点集的动态聚类分析方法。

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Comprehensive study has been conducted through cluster analysis of seismic attributes and plane and 3d visualization.

通过对地震属性进行聚类分析，并结合平面、三维立体可视化，进行多方面综合分析研究。

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In the distance, a plane, a cluster of lights, was sailing noiselessly east through a few rags of clouds.

NEWYORKER: The House Behind a Weeping Cherry