【摘要】 利用一种改进了的主成分分析综合评价法 ,通过Mathematica软件计算 ,对我国十二个湖泊富营养化污染状况作了评价排序 ,给出了排序结果 ,与常规方法的排序结果进行了比较。主成分分析法应用的关键在于确定各项指标的权重更多还原

【Abstract】 An improved comprehensive evaluation approach of principal component analysis is used in this paper to evaluate the situation of pollution of the twelve lakes in China,and the sequence result is given as well,which is compared with the result of Paper 1.更多还原