• License

Software and datasets to support 'Vector Generalized Linear and
Additive Models: With an Implementation in R',
first edition, by T. W. Yee.
Springer, 2015.
This file is intended to clarify ownership and copyright: where
possible individual files also carry brief copyright notices.
This file was adapted from the file of the same name from the
MASS bundle.
Copyrights
==========
Some slightly-modified FORTRAN subroutines from
http://pages.cs.wisc.edu/~deboor/pgs/
are used for the B-spline computations.
Some modified LINPACK subroutines appear in the files
./src/vlinpack?.f
Portions of the smoothing code called by vsmooth.spline() is
based on an adaptation of F. O'Sullivan's BART code.
Regarding file ./src/lerchphi.c, this program is copyright by
Sergej V. Aksenov (http://www.geocities.com/saksenov) and
Ulrich D. Jentschura (jentschura@physik.tu-dresden.de), 2002.
Version 1.00 (May 1, 2002)
R function pgamma.deriv() operates by a wrapper function to a
Fortran subroutine written by R. J. Moore. The subroutine was
modified to run using double precision. The original code came
from http://lib.stat.cmu.edu/apstat/187.
R functions expint(x), expexpint(x), expint.E1(x)
operate by wrapper functions to code downloaded from
http://www.netlib.org/specfun/ei
My understanding is that the dataset files VGAM/data/* and
VGAMdata/data/* are not copyright.
All other files are copyright (C) 1998-2015 T. W. Yee.
Licence
=======
    This is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 or 3 of the License
    (at your option).
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
Files share/licenses/GPL-2 and share/licenses/GPL-3 in the R
(source or binary) distribution are copies of versions 2 and 3
of the 'GNU General Public License'.
These can also be viewed at https://www.r-project.org/Licenses/
t.yee@auckland.ac.nz