How to get equation from s set of data

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SUMMARY

To derive an equation from a set of data obtained from Fourier output, cubic splines are a recommended method, especially when the data exhibits smooth characteristics. Curve fitting is not advisable in this scenario due to the uncertainty of the underlying function type. The discussion highlights the effectiveness of cubic splines as a solution for interpolating data points without prior knowledge of the function form.

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  • Understanding of Fourier analysis and its outputs
  • Knowledge of cubic spline interpolation techniques
  • Familiarity with data smoothing concepts
  • Basic programming skills for implementing spline algorithms
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  • Explore software tools that implement spline algorithms, such as SciPy in Python
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akter
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Hi,
I have a set of data which i got from Fourier output.Is it possible to get an equation from those data. I cannot use curve fitting because i have no idea what type of function i will get.

Thanks in advance,
Akter
 
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I think it depends on how smooth the data are. When I was a research assistant in college we used cubic splines for the very reason you state.
 
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