least square fitting with a data set

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.

Answer 1

[Ameer Hamza]

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