Copyright for sm source package in Focal

This is the Debian GNU/Linux r-cran-sm package of sm, a set of
functions for kernel smoothing methods for GNU R.  Sm was written by
Adrian W. Bowman and Adelchi Azzalini, and ported to R by B. D. Ripley.

This package was created by Dirk Eddelbuettel .
The sources were downloaded from 
	http://cran.us.r-project.org/src/contrib/

The package was renamed from its upstream name 'sm to 'r-cran-sm to
highlight the fact that is it a CRAN package for R.

Sm is copyright Adrian W. Bowman, Adelchi Azzalini and Brian
D. R. Ripley, and released under the GNU General Public License (GPL).

On a Debian GNU/Linux system, the GPL license (v2) is included in the file
/usr/share/common-licenses/GPL-2.

For reference, the upstream DESCRIPTION file is included below:

    Package: sm
    Version: 2.0-9
    Date: 2004-01-17
    Author:  Adrian W. Bowman and Adelchi Azzalini. 
             Ported to R by B. D. Ripley .
    Maintainer: Brian Ripley 
    Description: This is software linked to the book 
      `Applied Smoothing Techniques for Data Analysis: 
      The Kernel Approach with S-Plus Illustrations' Oxford University Press.
    Title: kernel smoothing methods: Bowman & Azzalini (1997)
    License: GPL (version 2)
    Packaged: Sun Jan 18 08:46:09 2004; ripley

The source package also includes the following file License (which,
being included here, we do ship as an individual file in the Debian
package):

    Licence agreement
    -----------------
    
    This software is associated with the book
      
        "Applied Smoothing Techniques for Data Analysis:
        the kernel approach with S-Plus illustrations"
        by Adrian W. Bowman & Adelchi Azzalini,
        published by Oxford University Press, 1997.
    
    It consists of two parts: the `sm library', and the `scripts'.
    The sm library is a suite of S-Plus routines. The scripts form 
    a layer of software above the sm library, and provide examples 
    of its applications.  
    
    The `sm` library is copyright of A.W.Bowman & A.Azzalini (1997, 
    2000) except for the exceptions below.
    
    The function sm.density calls the function sm.density.3d
    to produce contour plots of three-dimensional density estimates.
    This function was originally written by Stuart Young and has
    been amended by Adrian Bowman.  The copyright of this function
    and its subsidiary functions remains with Stuart Young.  The
    copyright of the Fortran code in the file routines.f is also
    held by Stuart Young.
    
    The function sm.sphere was written jointly by Adrian Bowman
    and Adrian Hines and copyright is held jointly.
    
    The scripts are copyright of Oxford University Press (1997).
    
    Irrespective of the individual copyrights, this software is usable 
    under the `GNU GENERAL PUBLIC LICENSE', a copy of which is distributed 
    together with this software.  This essentially means that this software 
    can be freely used and re-distributed, but no warranty of any sort is 
    provided for it.