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T O P I C    R E V I E W
Hamed_sbri Posted - 01/15/2024 : 2:05:50 PM
Hi. I have 600 different curves. I need obtain y from X for unknown periods of these data`s. I know that my solution is fitting, but for best result, i need to obtain best fit function and this way is wery long for 600 curevs. Can I solve my problem with little and better ways. For example, I think that, I can use spline or B-spline for my solution.
I need your helps
4   L A T E S T    R E P L I E S    (Newest First)
Hamed_sbri Posted - 01/15/2024 : 3:23:12 PM
Very thanks.
I will try your solutions.
snowli Posted - 01/15/2024 : 3:05:38 PM
You can also try Analysis: Mathematics: Interpolate/Extrapolate Y from X...
We improved it in Origin 2024 so that multiple curves can be processed together. See this video
https://www.youtube.com/watch?v=INvJ3XO1xxY&t=43s

Thanks, Snow
Hamed_sbri Posted - 01/15/2024 : 2:47:16 PM
Thanks for your answer. I test f(X) way. I hope it will answer, Because I have been looking for a solution for a long time.
I test vertical cursor but i conclude that, this method give me just know data's and don't work for unknown data's.
snowli Posted - 01/15/2024 : 2:30:42 PM
If you just want to find interpolation value, you can use column formula.


For A(X), B(Y) data
Put new X values you want to calculate in column C.
For Column C, enter B(C) as formula to do interpolation.

If you have other curves in other columns, u can do them similarly.


Also if you plot all curves, you can choose Gadget:Vertical Cursor.
Move cursor to each X position and click Output Report to collect Ys of each curve for given X position.

Thanks, Snow



Thanks, Snow


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