运用主成分分析,通过统计软件SPSS对2009年北京市工业企业主要经济指标进行处理,将反映城市工业特征的12个指标综合成两个主成分,并构造系统评价模型,对北京市28个工业企业进行排序和分类,得到发展较快、盈利较高的企业.
Using the principal component analysis,the 2009 economic index of the enterprises in Beijing were treated by statistical soft ware SPSS.Two principal components are synthesized based on the reflection of twelve indexes from the characters of city industry.Finally,it constructs a system appraisal model to sort the 28 enterprises and get some industries which make more profit and develop more quickly.