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 Using GUI.InputData to set X-Errors/Y-Errors		  New Topic  Reply to Topic
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ScriptQuestions

Germany
4 Posts
Posted - 03/03/2022 :  12:34:33 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Version: OriginPro 2020b (Academic);

Hello,

I am trying to automate non-linear fitting with Orthogonal Distance Regression, as my data has both X and Y errors. My current code is taken from another forum post here, and was the first solution to allow me to change the fitting algorithm by script. This is my current code:

tree nlGUI;
xop execute:=init classname:=FitNL iotrgui:=nlGUI;

//Specify function and input data, then update operation tree before fitting.

nlGUI.GUI.FunctionSelection.FunctionList$="Allometric1";


nlGUI.GUI.FunctionSelection.fitmethod=2; //Use ODR




nlGUI.GUI.InputData.Range1.X$=Col(A);



nlGUI.GUI.InputData.Range1.Y$=Col(C);




xop execute:=update iotrgui:=nlGUI;

xop execute:=report iotrgui:=nlGUI;

//Clean up operation objects after fit

xop execute:=cleanup;


My error data is in Col(B) for the X error, and in Col(D) for the Y error. What is the right syntax to enter this data into my InputData?
Or, in other words, where in the tree do I put the Error data?




This is how the GUI would look like if the data input was made by hand. The range1.X$ value has a sub-branch, which i would like to access via script to fill in my error values, but I do not know the correct syntax. Any help would be much appreciated.
Edited by - ScriptQuestions on 03/04/2022 04:35:41 AM

minimax

357 Posts
Posted - 03/04/2022 :  04:50:20 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi ScriptQuestions,

Note: 2020b does not support the script below very well yet.
You may try upgrading to latest version to take a try?

Please try using XF nlbegino:
https://www.originlab.com/doc/en/X-Function/ref/nlbegino

//Start the implicit fit with instrumental error, column 4 is the y error and column 2 is the x error.
nlbegino iy:=(1,3,4,2) func:=Allometric1 weight:=1;
nlfit;
nlend 1 1;
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ScriptQuestions

Germany
4 Posts
Posted - 03/04/2022 :  08:50:10 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you for this solution, after updating to 2022 it works like a charm, as it did not work for 2020b.

Thank you very much!
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