广西师范学院学报(自然科学版)
廣西師範學院學報(自然科學版)
엄서사범학원학보(자연과학판)
Journal of Guangxi Teachers Education University (Natural Science Edition)
2015年
3期
31-37
,共7页
综合评价%主成分分析%长江水质
綜閤評價%主成分分析%長江水質
종합평개%주성분분석%장강수질
comprehensive evaluation%principal component analysis%water quality of the Yan-gtze River
运用主成分分析法综合评价长江2003-2005年的水质情况。首先,通过主成分分析法把原评价长江水质的四个指标转化为少数几个具有代表性的综合变量;其次,合理简化给出的多元数据,提取对处理问题有效的信息;最后,用这些信息分析各地区水质的污染状况,并对长江水质做出定量的综合评价。所得结果显示出了所用方法的优越性和合理性,从而能较客观地对长江水质进行了综合评价。
運用主成分分析法綜閤評價長江2003-2005年的水質情況。首先,通過主成分分析法把原評價長江水質的四箇指標轉化為少數幾箇具有代錶性的綜閤變量;其次,閤理簡化給齣的多元數據,提取對處理問題有效的信息;最後,用這些信息分析各地區水質的汙染狀況,併對長江水質做齣定量的綜閤評價。所得結果顯示齣瞭所用方法的優越性和閤理性,從而能較客觀地對長江水質進行瞭綜閤評價。
운용주성분분석법종합평개장강2003-2005년적수질정황。수선,통과주성분분석법파원평개장강수질적사개지표전화위소수궤개구유대표성적종합변량;기차,합리간화급출적다원수거,제취대처리문제유효적신식;최후,용저사신식분석각지구수질적오염상황,병대장강수질주출정량적종합평개。소득결과현시출료소용방법적우월성화합이성,종이능교객관지대장강수질진행료종합평개。
In this paper , we have evaluated the water quality of the Yangtze River from the year2003 to 2005 by using principal component analysis method .Firstly ,we choose a few important new variables by using principal component analysis method which includes four evaluation indices of water quality of the Yangtze River .Secondly ,based on the data collation and analysis ,we extract use‐ful information to solve the problem .Finally ,we make use of the information to make quantitative comprehensive evaluation of the water quality and analyze the pollution status of water quality in the region .T he results show that our methods are advantageous and rational ,w hich objectively evaluates the water quality of the Yangtze River .