r2py_rpart
Copyright (C) 2026 Yufei Cai and Jun Li, University of Notre Dame

This package is a derivative work of the R package `rpart`
("Recursive Partitioning and Regression Trees"):

    https://github.com/bethatkinson/rpart
    https://cran.r-project.org/package=rpart

rpart is Copyright (C) the R Core Team and:
    Terry M. Therneau      (author)
    Beth Atkinson          (author, maintainer)
    Brian D. Ripley         (translator, producer of the initial R port)

r2py_rpart reimplements rpart's C routines (adapted to a plain C ABI,
callable from Python via cffi) and translates rpart's R functions into
Python, following the algorithms and structure of the original
implementation as closely as practical. No code from R itself or from
any other R package is included.

rpart is distributed under the GNU General Public License, version 2
or (at your option) any later version ("GPL-2.0-or-later"). In keeping
with that license, r2py_rpart is likewise distributed under
GPL-2.0-or-later; see the LICENSE file in this directory for the full
license text.
