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二元方程拟合
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T O P I C R E V I E W
huahuagongzi2013
Posted - 05/18/2016 : 10:46:08 PM
请问,origin可以进行二元方程的拟合吗
2 L A T E S T R E P L I E S (Newest First)
Echo_Chu
Posted - 05/18/2016 : 11:33:26 PM
关于拟合y=f(x1, x2), 这个论坛帖子写得很详细的
http://www.originlab.com/forum/topic.asp?TOPIC_ID=22359
Echo_Chu
Posted - 05/18/2016 : 10:58:50 PM
Origin 的surface fitting包含了很多自带的二元方程
菜单
Analysis: Fitting: Nonlinear Surface Fitting
可以打开这个工具
如果有多个自变量和因变量的时候, 也可以自定义函数用Nonlinear Curve Fitting 工具来做到这个. 可以看看下面关于这个的教程
这个教程是关于怎么用Origin自带的多变量函数来做多元的函数拟合.
http://www.originlab.com/doc/Tutorials/Fitting-NLFit-MultiVar
这个教程是关于怎么自定义函数来做多元的函数拟合. y = A0 + A1 * x1 + A2 * x2 + ...
http://www.originlab.com/doc/Tutorials/Fitting-MultiIndepVar
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