Hi, I would like to make a cubic spline fit to experimental data and I am trying to employ gsl tools for this scope, starting from the example given at the end of the chapter on Basis Splines of the User Guide. What I did not understand is the difference between knots and breakpoints. From a more "practical" point of view: what shall I do if I want to divide the x axis in --for example-- 3 regions, in which the experimental data have to be fitted by 3rd order polynomials, and let the x positions of the border points of these regions being introduced by the user?
Thanks CM _______________________________________________ Help-gsl mailing list Help-gsl@gnu.org http://lists.gnu.org/mailman/listinfo/help-gsl
