MATLAB稳健回归在作物水模型建模中的应用

APPLICATION OF MATLAB POBUST REGRESSION MODELING OF CROP RESPONSE TO WATER

本文讨论了作物水模型常规多元线性回归以及稳健回归的建立方法。基于内蒙古河套灌区曙光试验站玉米非充分灌溉试验资料,利用MATLAB中提供的稳健回归方法建立了Minhas型作物水模型,并与常规的多元线性回归方法进行了比较。结果表明采用稳健回归的方法比常规的多元线性回归可在一定程度上提高作物水模型的回归效果。

This article discussed the method of ordinary regression and robust regression to build model of crop response to water.Based on maize irrigation experimental data measured in experiment station of Shu Guang,uses robust regression which provides by MATLAB to build the Minhas s mode,and compared its results with of ordinary regression method.Results show that uses robust regression method can be able to enhance the effect of the crops water model than ordinary regression method in the certain degree.