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 线性拟合怎么过指定点		  New Topic  Reply to Topic
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qingx

China
10 Posts
Posted - 01/06/2020 :  04:11:40 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
线性拟合怎么过指定点？
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qingx

China
10 Posts
Posted - 01/06/2020 :  05:32:04 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
参考了网上的说法，先自己创建一个线性方程，然后按照非线性拟合的办法来做，就是有点麻烦，不知道有没有简便一点的方法
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yuki_wu

896 Posts
Posted - 01/06/2020 :  9:32:41 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

请参考以下的教程：
https://www.originlab.com/doc/Tutorials/Fitting-FixThroughPoint

3.2 Use Linear Constraint should works.

Regards, Yuki
OriginLab
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qingx

China
10 Posts
Posted - 01/08/2020 :  01:13:55 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
感谢回答，但是这个例子针对的还是非线性拟合的情况

请参考以下的教程：
https://www.originlab.com/doc/Tutorials/Fitting-FixThroughPoint

3.2 Use Linear Constraint should works.

Regards, Yuki
OriginLab
[/quote]
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yuki_wu

896 Posts
Posted - 01/09/2020 :  8:50:58 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

打开 NLFit Dialog 后，在 Settings 标签页选择Funtion Selection: Category (Polynomial): Function (Line) 即可进行线性拟合。

Regards, Yuki
OriginLab
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