Re: Cubic Spline Interpolation Bug
1D cubic spline interpolation seems to work fine, Ivan. Thanks for adding it.
I redid all of my graphs, over 100 curves total. Either 1D or 2D worked well in most cases. I defaulted to 1D because some curves had odd artifacts in 2D. I did find one curve where the data wasn't inherently smooth and 2D worked best. Linear interpolation was best for very dense curves (hundreds of points) and for connecting a few plotted data points with straight lines to emphasize the sparse sampling. It's nice to have a choice of interpolation method.