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基于变异系数法的聚类分析在汶川地震灾情分类中的应用
The Application of Cluster Analysis Method based on Variation Coefficient Method on Classification of Disaster in Wenchuan Earthquake
【摘要】 首先,基于原始数据采用变异系数法选取了影响地震灾情严重程度的四个主要灾情指标.然后,依据四个主要灾情指标在SPSS软件上采用系统聚类分析法对36个县市按照灾情严重程度进行了综合分类.所得到的分类结果与参考文献中的基本一致,进而验证了基于变异系数法的聚类分析在地震灾情分类中应用的合理性.从而提供了一种正确进行灾情分类和物质分配的有效方法.
【Abstract】 Firstly,these four main disaster indicators influencing severity of the disaster are selected by variation coefficient method based on original data.Secondly,by cluster analysis method of SPSS software,these 36 counties and cities are ranked according to the severity of disaster according to four main disaster indicators.The results are consistent with these references.And it is proved that the cluster analysis method based on variation coefficient method applied on the disaster area classification is reasonable.It is provided with an effective way of disaster classification and proper distribution of supplies.
【Key words】 variation coefficient method； cluster analysis method； SPSS； wenchuan earthquake； disaster indicators； classification；
- 【文献出处】 洛阳师范学院学报 ,Journal of Luoyang Normal University , 编辑部邮箱 ,2012年05期
- 【分类号】P315.9
- 【被引频次】1
- 【下载频次】211