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finding a fuction of set of refined points
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I have a set of points, time and RPM of a rotating crankshaft. And the RPM is refined to .0000001 time scale resulting in a set of 4000+ points. The graph is plotted below. Is there any method to find the function of this graph?(which can be further applied in Multibody simulation to replicate the test bench). And the RPM gradually decreases and come to halt after the ignition is turned off.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/170073/image.png)
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Stephen23
le 23 Nov 2017
Modifié(e) : Stephen23
le 23 Nov 2017
You basically have a choice between:
- you know something about the underlying physical process, and can use this to fit a model to the data. Any internet search engine can help you: "MATLAB curve fitting".
- you know nothing about the process (or it is too complex), then you can fit a spline. Any internet search engine can help you: "MATLAB splines".
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