摘要
在合理选择数据规格化方法基础上,建立水污染状况评价的变量加权主成分分析方法,并以判别分析方法就水质污染级别进行校验,实证分析结果表明:改进后的主成分分析方法和评价体系较已有方法效果有显著提高。
In this paper, the method of principal component analysis by weighting variables based on choosing suitable non - dimensional quantities of original data is presented, the authors also make quantitative evaluation to the polluting status in degrees for representative sections, and the system has more effectiveness and practicality than those existing.
出处
《数理统计与管理》
CSSCI
北大核心
2005年第6期1-5,共5页
Journal of Applied Statistics and Management
基金
国家自然科学基金项目(40071066)
青海省2003年重点课程及精品课程建设项目
关键词
水质评价
变量加权
主成分
判别分析
evaluation of water quality
weighting variables
principal component
discriminant analysis
