This function is only intended for an internal use.
spen_egcv(dim, x, y, w, h, QtyPerm, lambda, m, nforApp,
EGCVflag, agcv)Does not return anything. Changes the inputs according to the iterations.
vector of sample size.
x-vector in smooth.pen.reg.
y-vector in smooth.pen.reg.
w-vector in smooth.pen.reg.
difference vector for x for internal use.
Second order difference for x for internal use.
smoothing parameter input for smooth.pen.reg.
vector to store the prediction vector.
Number of iterations for approximate GCV.
Logical when GCV is needed.
Internal scalar. Set to 0. Stores the approximate GCV.
Arun Kumar Kuchibhotla, arunku@wharton.upenn.edu.
This is same as smooth.spline except for small changes.
smooth.spline