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I need to find the function that describes a dataset (x, y), the values do not have noise. Which commands do you recommend?

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Andrew Newell
Andrew Newell am 19 Apr. 2017
Depends what you mean by "describes"! If you want a curve that goes through all the points, interpolation would be best. If x and y are vectors, you could use interp1.

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Image Analyst
Image Analyst am 19 Apr. 2017

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See my polyfit() demo, attached. It's one of many possible ways. Whether or not it will be best for your needs is known only by you, not us.

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