摘要
运用主成分分析法对农七师125团棉田进行质量评价。随机选取50块耕地共10个变量(评价项目),对各变量进行数据标准化处理,再进行主成分分析。分析结果表明,第Ⅰ～Ⅲ主成分代表了评价指标的87.91%信息。根据主成分的综合得分划分棉田等级,分析结果与其它评价方法得出的结论一致。
The principal component analysis method was used to study 50 samples and 10 indexes (assessment items),and digitize the properties of the variables.The result indicated that theⅠ～Ⅲ principal components generally took 87.91% information of the whole.The result of sorting out the rank of cotton field was in accordant with other methods and practices.
出处
《石河子大学学报（自然科学版）》
CAS
2004年第4期289-291,共3页
Journal of Shihezi University(Natural Science)
基金
新疆生产建设兵团博士基金(2002 5)
关键词
主成分分析
棉田
质量评价
principal component analysis
cotton field
the assessment of quality
