摘要
地区综合实力反映一个地区社会经济系统的发展水平。主成分分析法能够在保证原始数据信息损失最小的情况下,以少数的综合变量取代原有的多维变量,使数据结构大为简化,并且客观地确定权数,避免了主观随意性,因而是地区综合实力评价的一种有效方法。通过主成分分析,可以全方位地了解各个地区社会经济系统的发展水平及其差距。
The area's comprehensive strength is used to indicate development level of society and economy system of an area.The principal component analysis method can substitute a small number comprehensive variable for original multidimensional variable,and obviously simplify data structure in the precondition of minimizing loss of original data information.The principal component analysis can objectively give weight and avoid subjective random.Hence,it is a simple and efficient method in evaluation of an area's comprehensive strength.By means of the principal component analysis,development level and its difference of every area could be all known.
出处
《地理与地理信息科学》
CSSCI
CSCD
北大核心
2004年第6期73-75,共3页
Geography and Geo-Information Science
基金
浙江省自然科学基金资助项目(402034)
浙江省金华市科技计划项目(03-1-508)
