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| -rw-r--r-- | var/spack/repos/builtin/packages/r-multicool/package.py | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/r-multicool/package.py b/var/spack/repos/builtin/packages/r-multicool/package.py index 51f06600f8..662f1f12bb 100644 --- a/var/spack/repos/builtin/packages/r-multicool/package.py +++ b/var/spack/repos/builtin/packages/r-multicool/package.py @@ -7,12 +7,29 @@ from spack import * class RMulticool(RPackage): - """Permutations of multisets in cool-lex order.""" + """Permutations of multisets in cool-lex order + + A set of tools to permute multisets without loops or hash tables and to + generate integer partitions. The permutation functions are based on C code + from Aaron Williams. Cool-lex order is similar to colexicographical order. + The algorithm is described in Williams, A. (2009) + <DOI:10.1145/1496770.1496877> Loopless Generation of Multiset Permutations + by Prefix Shifts. Symposium on Discrete Algorithms, New York, United + States. The permutation code is distributed without restrictions. The code + for stable and efficient computation of multinomial coefficients comes from + Dave Barber. The code can be download from + <http://tamivox.org/dave/multinomial/code.html> and is distributed without + conditions. The package also generates the integer partitions of a + positive, non-zero integer n. The C++ code for this is based on Python code + from Jerome Kelleher which can be found here + <http://jeromekelleher.net/tag/integer-partitions.html>. The C++ code and + Python code are distributed without conditions.""" homepage = "https://cloud.r-project.org/package=multicool" url = "https://cloud.r-project.org/src/contrib/Archive/multicool/multicool_0.1-9.tar.gz" list_url = "https://cloud.r-project.org/src/contrib/Archive/multicool/Archive/multicool" + version('0.1-10', sha256='5bb0cb0d9eb64420c862877247a79bb0afadacfe23262ec8c3fa26e5e34d6ff9') version('0.1-9', sha256='bdf92571cef1b649952d155395a92b8683099ee13114f73a9d41fc5d7d49d329') depends_on('r-rcpp@0.11.2:', type=('build', 'run')) |