multicool
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Description
Package:  multicool 
Version:  1.0.1 
Title:  Permutations of Multisets in CoolLex Order 
Author:  James Curran, Aaron Williams, Jerome Kelleher, Dave Barber 
Maintainer:  James Curran 
Description:  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. Coollex order is similar to colexicographical order. The algorithm is described in Williams, A. Loopless Generation of Multiset Permutations by Prefix Shifts. SODA 2009, 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 and is distributed without conditions. The package also generates the integer partitions of a positive, nonzero integer n. The C++ code for this is based on Python code from Jerome Kelleher which can be found here . The C++ code and Python code are distributed without conditions. 
Depends:  methods, Rcpp (>= 0.11.2) 
License:  GPL2 
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