Interpolation or curve fit data suggestions

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Stelios Fanourakis
Stelios Fanourakis 2019-10-28
评论： Stelios Fanourakis 2019-10-29
Hello
I have a series of excel data (X,Y) more than 1000 rows. They are forces and deformation. Do you know empirically what is the best curve fitting method?
Finally, I want to merge data from other files and correlate them with the X,Y excel files and fill the gaps where necessary or interpolate.
E.g. if we know that for X = 5 and Y= 3 point of a curve is equal to 5 Newton of Force, then how many Newtons of Force are equal to X = 5 and Y = 2.5 (data coming from the new data set).
Any ideas please? Better coming with a piece of code
Thanks

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回答（1 个）

Nicolas B.
Nicolas B. 2019-10-28
I would recommand you to take a look at:
1D data:
interp1()
griddedinterpolant()
2D data:
interp2()
griddedinterpolant()
I hope it helps you.
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Nicolas B.
Nicolas B. 2019-10-29
oh. For that, I don't have a solution. Maybe someone else could help you

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