Hey Stefan, thanks for the reply. That was the type of functionality I was hoping for, but it doesn’t quite work like we are expecting.
While the “interpolated” data does look like a sin wave, it is not even close to in the right place. See what happens if we plot the actual grid points used to çreate the igobject ( X, and V) with the interpolated values as well as the actual values of sin(Xq). X = [3:15]; V = sin(X); Xq = [4:.25:12]; ig = InterpGrid(V, BCnil, InterpLinear); y=[ig[x] for x in Xq]; plot(X,V,"o",Xq,y, "orange", Xq, sin(Xq), "red"); legend(["Data", "Interp", "Actual"]) <https://lh4.googleusercontent.com/-HuKpbz8rBq0/U00W4PpOr0I/AAAAAAAAHuU/QUk7TWTfI24/s1600/poor_interp.png>
