How can I smooth this plot?

[Sam Chak]

Hi @Anthos Ioannou

Have you tried the smooth funtion?

https://www.mathworks.com/help/curvefit/smooth.html

[John D'Errico]

@Sam Chak - Um, NO. Smooth does not apply to multi-valued relations like this. While you could actually pass in the vectors x and y, the result would probably not make much sense. In fact, it would likely look much less smooth than the original data.

However, if the points as plotted are really sampled say uniformly in time, then you might decide to apply smooth to both x(t) and y(t) separately. That would hopefully produce a meaningful result.

[Cris LaPierre]

How have you created this plot? What plotting function did you use? Please share the code used to create your plot. You can also attach your data files using the paperclip icon.

[Star Strider]

That looks like a set of hysteresis curves. It might be possible to estimate the parameters using something like how to find ascending and descending of hysteresis loop? and the plot the resulting loop with linspace independent variables.