摘要
在涉及众多因子的水质综合评价中,每种评价方法有其自身的优缺点。将模糊综合分析法与主成分分析法在实例中进行比较,通过比较得出主成分分析法能够客观地确定各个指标的权重,避免了随意性,也避免了计算过程中由于因子众多,数据复杂而造成的人工计算误差,使结果更加可靠。主成分分析将原来的众多的子转化为少数主成分,少数主成分综合的反映水质情况,且各主成分内不同因子之间的相关性关系也十分明确。
In a comprehensive water quality evaluation which involves many factors, each evaluation method has its own ad-vantages and disadvantages. This paper compares principal components analysis and fuzzy analysis by examples. The results show that the former determine various weights objectively, avoids arbitrariness and the error of manual calculation which caused by numerous factors and complex data. Principal components analysis assesses the water quality by transforming numerous fac-tors into a small number of comprehensive major components, and the correlate relationship of factors in each major component is very clear.
出处
《环境科学与管理》
CAS
2011年第8期178-181,共4页
Environmental Science and Management
关键词
水质综合评价
模糊分析法
主成分分析法
comprehensive water quality evaluation
principal components analysis
fuzzy analysis
