Hi, I am trying to smooth a path defined in 2d by (x,y) which varies in time. I am using the Numerical Recipes 1d smoothing C code functions savgol() and convlv() to smooth x and y independently, which seem to do a pretty good job. However, while it seems to work, I was wondering if I should truly being smoothing these variables independently. Note, I have found several source for Sav. Gol. 2d smoothing image smoothing, but that is not what I am looking for. Just smoothing of a path defined in x and y, which varies in time.