Constructs B-splines and its integral, monotone splines
(M-splines) and its integral (I-splines), convex splines (C-splines),
and their derivatives of given order. Piecewise constant basis is
allowed for B-splines and M-splines. See
De Boor (1978) <doi:10.1002/zamm.19800600129>,
Ramsay (1988) <doi:10.1214/ss/1177012761>, and
Meyer (2008) <doi:10.1214/08-AOAS167> for more information.
Tests Vignettes
Available Snapshots
This version of splines2 can be found in the following snapshots: