Sequential fitting of B-spline

[bgrimstad]

Allow a B-spline to be fitted to sample points in a sequential manner. In many applications, new sample points may become available after the B-spline has been fitted and it is desirable to adjust the coefficients using this additional information.

This is possible to do with the current release, but it requires a new B-spline to be built using the old and new sample points, which is inefficient.

[randomizedthinking]

Is there any progress on the sequential fitting of penalized B-spline?