suitable Regression or Curve fitting for vertical scattered Data

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Mahdi 2015-8-11

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编辑： Nima 2015-8-14

Hi everyone,

I have some vertical scattered Data. But I can not find a suitable cure fitting the Data. Does anybody have an idea? Is there any possiblity to get a good aproximated curve from such scattered data?

Best Regards

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James Wiken 2015-8-13

Have you tried using the Scattered Data Interpolation functions? You can find more information here:

http://www.mathworks.com/help/matlab/scattered-data-interpolation.html

Additionally, the Curve Fitting Toolbox may have some helpful functionality:

http://www.mathworks.com/help/curvefit/index.html

If so and they have not worked, could you provide the data or a plot of it and why these methods have not worked for you?

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Answer 1

Nima 2015-8-14

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编辑：Nima 2015-8-14

I guess you can try regression using artificial neural network (ANN):

http://www.mathworks.com/help/nnet/function-approximation-and-nonlinear-regression.html

Or you can go for some techniques in statistics and machine learning toolbox...

http://www.mathworks.com/help/stats/functionlist.html#btq_uq5

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