Copyright for rpart source package in Focal

This is the Debian GNU/Linux r-cran-rpart package of rpart, a
collection of functions for recursive partitioning and regression
trees. Rpart was written by Terry Therneau and Beth Atkinson, and
Brian Ripley provided the R port.

This package was created by Dirk Eddelbuettel .
The sources were downloaded from 
	http://cran.us.r-project.org/src/contrib/
and are also included in the (large) source tar archive of R itself at
	http://cran.us.r-project.org/src/base/

The package was renamed from its upstream name 'rpart' to 'r-cran-rpart'
to fit the pattern of CRAN (and non-CRAN) packages for R.

Copyright (C) 1993 - 2008 Terry Therneau and Beth Atkinson
Portions Copyright (C) 1998 - 2008 Brian Ripley

License: GPL-2 | license included below.

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

For reference, the upstream DESCRIPTION [with lines broken to 80 cols]
file is included below:

    Package: rpart
    Priority: recommended
    Version: 3.1-13
    Date: March 2002 version of rpart, R version 2003-08-03
    Author: Terry M Therneau and Beth Atkinson .
            R port by Brian Ripley .
    Maintainer: Brian Ripley 
    Description: Recursive partitioning and regression trees
    Title: Recursive partitioning
    Depends: R (>= 1.8.0), survival
    License: use under GPL2, or see file LICENCE
    URL: S-PLUS 6.x original at http://www.mayo.edu/hsr/Sfunc.html

as is the file LICENSE

    This package is released under the GPL version 2.  It can also be used
    under the following license, which is in some respects more liberal.
    
    
    License: Copyright 2000 Mayo Foundation for Medical Education and
    	Research. This software is accepted by users "as is" and
    	without warranties or guarantees of any kind. It may be used
    	for research purposes or in relation to projects with
    	commercial applications or included in commercial packages,
    	but only so long as it is not relicensed as a stand-alone
    	program, and only so long as the first two sentences of this 
    	paragraph (copyright notice and no warranty) are reproduced 
    	with the software.
    
    	Modifications for use with R (c) 1998-2001 B.D. Ripley under the
    	same conditions.