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| 主成分分析在环境质量评价中的失效问题 | |
| 引用本文： | 冯利华,贾春瑶. 主成分分析在环境质量评价中的失效问题[J]. 数学的实践与认识, 2005, 35(6): 12-16 |
| 作者姓名： | 冯利华 贾春瑶 |
| 作者单位： | 浙江师范大学地理系,浙江,金华,321004 |
| 摘 要： | 在环境质量评价中,主成分分析被认为是一种客观而实用的评价方法.但大量的数据分析表明,主成分分析的评价结果并不一定符合实际情况,有时甚至完全失效,存在着一系列问题,而这些问题是由主成分分析本身的性质所决定的. |
| 关 键 词： | 主成分分析 环境质量评价 等级 失效 |
| 修稿时间： | 2003-04-11 |
Ineffective Problem of Principal Component Analysis in Assessment of Environmental Quality |
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| Feng Li-hua,JIA Chun-yao. Ineffective Problem of Principal Component Analysis in Assessment of Environmental Quality[J]. Mathematics in Practice and Theory, 2005, 35(6): 12-16 | |
| Authors: | Feng Li-hua JIA Chun-yao |
| Abstract: | Principal component analysis was taken for an objective and practical evaluation method in assessment of environment quality. But numerous datum analysis demonstrated that all the results exported by principal component analysis didn't conform actual conditions. Sometimes it became ineffective and there were a lot of problems. These problems depended on the property of principal component analysis itself. |
| Keywords: | principal component analysis assessment of environmental quality grade ineffectiveness |
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