基于主成分分析法的河南省各城市综合实力评价

采用《河南统计年鉴》（2007）的最新资料，综合运用多要素主成分分析法和聚类分析方法，测度河南各市经济综合实力．研究表明，河南各城市的综合经济实力存在显著的空间异质性：郑州、洛阳实力最强；中原城市群九城市中，除开封排名靠后外，总体位居河南前列；周口、商丘、驻马店等豫东平原区的城市综合实力较弱．

Based on the Principal Component Analysis of the Comprehensive Strength Evaluation of Each City in Henan Province

Use of the latest data of《Statistical Yearbook of Henan Province》(2007),measure the municipalities of Henan comprehensive economic strength by using multi-factor principal component analysis and cluster analysis methods comprehensively. The research shows that:Each city’s comprehensive economy strength of Henan province has special significant heterogeneity character. Zhengzhou and Luoyang are the strongest. In the nine cities of central plains city group,in addition to Kaifeng is in behind,others are in front in Henan province. The cities include Zhoukou,Shangqiu,Zhumadian and other areas in the east plains of Henan,their city’s comprehensive strength is of the weak.