Smooth XY Data of a Closed Curve

[chris_1243]

Hi. I am looking for suggestions on how to smooth XY Data that looks like the attached, a closed curve. The Filter vis I have looked at all use X but not X and Y. 

Thanks.

[GregSands · Accepted solution]

Have you tried either:

a) using B-Spline Fit?, or

b) smoothing X and Y independently and recombining to give your smooth curve?

You may want to duplicate your data in the fit so that you get a more continuous curve at the end-points.  Here's a quick, rough example:

[chris_1243]

That worked. Thank you!