There has been some recent discussions on the list about interpolation and smoothing. I have recently implemented a regularization method to smooth 1-dimensional (y vs. x) data. Although the method is analogous to spline-based smoothing that already exists in Scipy and my code is currently limited to 1D, I have implemented some useful features, specifically generalized cross-validation for determining the regularization parameter and the ability to add constraints to the smooth result. Would there be enough interest for me to contribute my code to Scipy? How would I go about doing so? Please know that I am new to the scipy community. Thanks, Jonathan P.S. For further reading, see: http://dx.doi.org/10.1016/j.compchemeng.2009.10.007 If you do not have access to the journal, you may email me offlist.