least square fitting with a data set

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Jiung Shin
Jiung Shin 2020-12-7
回答： Ameer Hamza 2020-12-7
I have a matrix A with first column time, second and third column each x and y coordinate of the body.
If I want to plot the path more smoothly using least squares approximation, how should I write my code?
I'm not so sure because x does not go in one direction or increase by 1.

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Ameer Hamza
Ameer Hamza 2020-12-7
You can use sgolayfilt() or 'smoothingspline' option from curve fitting toolbox. See the answers here for detailed discussion on this topic: https://www.mathworks.com/matlabcentral/answers/682698-curve-fit-or-spline-fit-for-a-wavy-function

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