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# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack import *


class RNnet(RPackage):
    """Feed-Forward Neural Networks and Multinomial Log-Linear Models

    Software for feed-forward neural networks with a single hidden layer,
    and for multinomial log-linear models."""

    homepage = "http://www.stats.ox.ac.uk/pub/MASS4/"
    url      = "https://cloud.r-project.org/src/contrib/nnet_7.3-12.tar.gz"
    list_url = "https://cloud.r-project.org/src/contrib/Archive/nnet"

    version('7.3-14', sha256='5d1b9e9764d74d16c651f18f949aa4e9e2995ba64633cbfa2c6a7355ae30f4af')
    version('7.3-12', sha256='2723523e8581cc0e2215435ac773033577a16087a3f41d111757dd96b8c5559d')

    depends_on('r@2.14:', type=('build', 'run'))
    depends_on('r@3.0.0:', when='@7.3-14:', type=('build', 'run'))