30 lines
1.3 KiB
Python
30 lines
1.3 KiB
Python
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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from spack.package import *
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class RIterpc(RPackage):
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"""Efficient Iterator for Permutations and Combinations.
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Iterator for generating permutations and combinations. They can be either
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drawn with or without replacement, or with distinct/ non-distinct items
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(multiset). The generated sequences are in lexicographical order
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(dictionary order). The algorithms to generate permutations and
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combinations are memory efficient. These iterative algorithms enable users
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to process all sequences without putting all results in the memory at the
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same time. The algorithms are written in C/C++ for faster performance.
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Note: 'iterpc' is no longer being maintained. Users are recommended to
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switch to 'arrangements'."""
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cran = "iterpc"
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version("0.4.2", sha256="38bd464042a27536f676e889263eb2c257a431b59083f58cb54473f42ba2071b")
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depends_on("r@3.0.0:", type=("build", "run"))
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depends_on("r-iterators", type=("build", "run"))
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depends_on("r-gmp@0.5-12:", type=("build", "run"))
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depends_on("r-arrangements@1.0.0:", type=("build", "run"))
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