E02BEF is a more advanced routine than the other NAG spline routines. It places knots automatically while fitting a cubic spline. This library includes for this case a number of routines from DIERCKX. PDA_CURFIT performs the spline approximation with given or automatic knots. The fitted function is evaluated with PDA_SPLEV, its derivatives with PDA_SPLDER, its integral with PDA_SPLINT. The routines exist only for single precision arguments.
These routines are so far unused, so there are no migration hints.
PDA [1ex