线性拟合在鲁西流磁资料中的应用
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摘要
基于MATLAB的最小二乘原理及一元线性回归建模方法,对鲁西2001年以来的流磁数据趋势性变化特点进行了线性拟合,比较分析拟合优度及残差等判别指标并结合地震关系进行了探讨。其结果证明利用线性拟合鲁西地磁场趋势性变化效果显著,为以后的流动监测精细化分析提供了相应的理论依据。
Based on the principle of least squares and linear regression modeling, the linear fit to the trend of changes of the mobile magnetic data in the west Shandong Province since 2001, the comparative analysis of fit goodness, the residual discriminate index and the relationship with the earthquake are discussed. The results prove that the effective use of regression is obvious in linear fitting geomagnetic field trend changes in the west of Shandong Province.
Based on the principle of least squares and linear regression modeling, the linear fit to the trend of changes of the mobile magnetic data in the west Shandong Province since 2001, the comparative analysis of fit goodness, the residual discriminate index and the relationship with the earthquake are discussed. The results prove that the effective use of regression is obvious in linear fitting geomagnetic field trend changes in the west of Shandong Province.
引文
[1]国家地震局.地震地磁测量规范[M].北京:地震出版社,1997.
[2]王继先.基于Matlab的曲线拟合[J].学术园地,2006,74-76.
[3]郭玉莲,等.鲁西流动地磁复测资料异常初析[J].华南地震,1998,18(3):68-72
[4]张世强.曲线回归的拟合优度指标的探讨[J].中国卫生统计,2002,19(1):9-11.
[2]王继先.基于Matlab的曲线拟合[J].学术园地,2006,74-76.
[3]郭玉莲,等.鲁西流动地磁复测资料异常初析[J].华南地震,1998,18(3):68-72
[4]张世强.曲线回归的拟合优度指标的探讨[J].中国卫生统计,2002,19(1):9-11.
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