what is the best fitting tool to a data with sharp change in slop?

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Abdulaziz Abutunis 2016 年 3 月 9 日

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https://jp.mathworks.com/matlabcentral/answers/272231-what-is-the-best-fitting-tool-to-a-data-with-sharp-change-in-slop

コメント済み: KSSV 2016 年 3 月 9 日

Hi all,

I am attaching plot of plotted data and fitted curve to this data. The figure shows deviation at regions that have sudden change in slop. The functions I used are polyfit and polyval. Is there any other fitting function or technique that gives better fitting to the curve.

Thanks in advance Aziz