线性拟合在鲁西流磁资料中的应用  

Application of geomagnetic trend changes in the west Shandong Province with the method of linear fitting in MatLab

作　　者：陆汉鹏[1] 佟瑞清[1] 韩海华[1] 朱成林[1] 

机构地区：[1]山东省地震局,山东济南250014

出　　处：《四川地震》2013年第1期31-35,共5页Earthquake Research in Sichuan

基　　金：山东地震局2012年合同制项目(12Y08)

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 chan- ges 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.

关 键 词：线性拟合 最小二乘原理 趋势性 地磁场 地磁变化 

分 类 号：P315.721[天文地球—地震学]