# see also toms/642.

file	gcv/sbart.r
for	univariate smoothing spline automatically choosing the smoothing parameter by minimizing generalized cross validation
lang	Ratfor language with comments
by	Finbarr O'Sullivan
ref	"Comments on Dr. Silverman's Paper", J. Royal Statistical Society B (1985) 47, pp.39-40

file	gcv/sbart.f
for	univariate smoothing spline automatically choosing the smoothing parameter by minimizing generalized cross validation
lang	Fortran language with NO comments
by	Finbarr O'Sullivan
ref	"Comments on Dr. Silverman's Paper", J. Royal Statistical Society B (1985) 47, pp.39-40

file	gcv/bart.shar
for	smoothing spline
by	Finbarr O'Sullivan
size	200 kilobytes

file	gcv/gcvspl
for	B-spline data smoothing using generalized cross-validation and mean squared prediction or explicit user smoothing
by	H.J. Woltring,  University of Nijmegen, Philips Medical Systems, Eindhoven (The Netherlands)
# Natural B-spline data smoothing subroutine, using the Generalized Cross-
# Validation and Mean-Squared Prediction Error Criteria of Craven & Wahba
# (1979). Alternatively, the amount of smoothing can be given explicitly, or
# it can be based on the effective number of degrees of freedom in the
# smoothing process as defined by Wahba (1980). The model assumes
# uncorrelated, additive noise and essentially smooth, underlying functions.
# The noise may be non-stationary, and the independent co-ordinates may be
# spaced non-equidistantly. Multiple datasets, with common independent
# variables and weight factors are accomodated.  A full description of the
# package is provided in:  H.J. Woltring (1986), A FORTRAN package for
# generalized, cross-validatory spline smoothing and differentiation.
# Advances in Engineering Software 8(2):104-113

file	gcv/gcv1
name	gcvpack release 2, part 1
for	generalized cross validation, also requires (gcv/gcv2)
by	D. Bates, M. Lindstrom, G. Wahba and B. Yandell  Univ Wisconsin-Madison
ref	"GCVPACK-ROUTINES FOR GENERALIZED CROSS VALIDATION", TR 775(rev.), October, 1986.
# Uses: dcopy dasum dqrsl dtrco dtrsl ddot dswap dqrdc dchdc dsvdc from linpack and the blas.
# If you have problems or questions, please mail details to 
# 	gcvpack@stat.wisc.edu
# We may be contacted individually as follows:
# 	bates@stat.wisc.edu - Douglas Bates 
# 	lindstro@stat.wisc.edu - Mary Lindstrom 
# 	wahba@stat.wisc.edu - Grace Wahba 
# 	yandell@stat.wisc.edu - Brian Yandell

file	gcv/gcv2
name	gcvpack release 2, part 2
# see gcv/gcv1

file	gcv/gcvdoc
for	error codes and update notices for (gcv/gcv1) and (gcv/gcv2)
# see gcv/gcv1


file	gcv/rkpk.shar
name	RKPACK
for	smoothing spline by generalized cross validation or generalized maximum likelihood
lang	ratfor
by	C. Gu, University of Wisconsin-Madison  [gu@stat.wisc.edu]
ref	SIAM J. Sci. Stat. Comp. 12, 383-398.
alg	Householder tridiagonalization with distributed truncation

file	gcv/rkpk.tex
lang	LaTeX
for	documentation of gcv/rkpk.shar


file	gcv/vspline
for	non-parametric estimate of a smooth vector-valued function from noisy measurements
by	Jeff Fessler, Stanford University
lang	C
alg	generalization of (scalar) cubic-spline smoothing
ref	"Non-parametric fixed-interval smoothing with vector splines", IEEE ASSP

