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| 适线法中拟合优度与设计值精度关系的分析 | |
| 引用本文： | 丛树铮,陈元芳. 适线法中拟合优度与设计值精度关系的分析[J]. 河海大学学报(自然科学版), 1989, 0(4) |
| 作者姓名： | 丛树铮 陈元芳 |
| 作者单位： | 河海大学水资源水文系 |
| 摘 要： | 本文利用Monte-Carlo方法计算了不同适线方法下拟合优度与设计值精度的相关系数,并分析了适线方法的不确定性对以上关系的影响.结果表明:在绝对值准则适线下,两者之间可以认为是零相关:而平方和准则下虽不为零相关,但其相关系数很小.根据以上结果,对目估适线中关于拟合优度的看法与处理方法的合理性作了分析,得出一些有用的结论.本文的研究对于今后科学合理地适线有一定的指导意义. |
| 关 键 词： | 适线法 拟合优度 设计值精度 相关分析 |
Analysis of Relationship between Fitting Index and Sampling Error of Design Flood Estimated with Curve-Fitting Method |
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| Cong Shuzheng, Chen Yuanfang. Analysis of Relationship between Fitting Index and Sampling Error of Design Flood Estimated with Curve-Fitting Method[J]. Journal of Hohai University (Natural Sciences ), 1989, 0(4) | |
| Authors: | Cong Shuzheng Chen Yuanfang |
| Affiliation: | Cong Shuzheng; Chen Yuanfang |
| Abstract: | The relationship between the fitting index and the sampling error of design events estimated with the curve-fitting method is calculated and analysed with the Monte-Carlo method in the paper. Calculated results show that the correlation coefficient in the curve-fitting method is equal to zero with the absolution norm and close to zero with the square norm.So the relationship between the fitting index and sampling error is very weak. Based on the above result, the necessity of "curve adjustment" in the curve-fitting method is discussed and some useful conclusions are obtained. |
| Keywords: | curve-fitting method fitting index precision of designevents correlation analysis |
| 本文献已被 CNKI 维普 等数据库收录！ | |