The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
 All Forums
 Origin中文论坛
 Origin 中文论坛 (Chinese Origin Forum)
 用LabTalk进行非线性拟合

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Anti-Spam Code:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkUpload FileInsert Image Insert CodeInsert QuoteInsert List
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

 
   

T O P I C    R E V I E W
vickey Posted - 05/17/2016 : 05:17:34 AM
用LabTalk进行非线性拟合
range fitx=1, fity=3; // 设置第三列为拟合曲线输出列
nlbegin iy:=(1,2) func:=gauss nltree:=Fitresults; //设置拟合条件，把拟合参数放到Fitresults树中
Fitresults.xc = 5; // 设置峰中心初始值为 5.
//Fitresults.f_xc = 1; // 固定峰中心值为1.
nlfit; // 开始拟合直至收敛
fity=fit(fitx); // 通过拟合结果生成拟合曲线放到第三列
nlend 1 1; //输出拟合报告并设置结果为自动更新


拟合完成后参数结果都存储在Fitresults树里，你可以运行Fitresults.=;然后可以看到这个树里面所包含的所有结果。
如果想把结果放到某个cell，可以用下面的：
col(4)[1] = Fitresults.xc； //被高斯拟合中心放到第四列第一个单元格。


希望对大家有用！
感兴趣的同学可以去到下面的参考页学习：
http://www.originlab.com/doc/X-Function/ref/nlbegin

The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000