摘要
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 ,因而是环境质量综合评价的一种简单易行的有效方法 .通过主成分分析 。
The principal component analysis could substitu te 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 could objectively gi ve weight and avoid subjective random problem. Hence it was a simple and efficie nt method of comprehensive evaluation of environmental quality. By means of the principal component analysis, the important theoretical basis could be provided for the districting and grading management of environmental quality.
出处
《数学的实践与认识》
CSCD
北大核心
2003年第8期32-35,共4页
Mathematics in Practice and Theory
