Download All

Code covered by the BSD License

4.0

4.0 | 1 rating Rate this file 14 Downloads (last 30 days) File Size: 345.04 KB File ID: #10237

perms

06 Mar 2006 (Updated 27 May 2009)

even, odd, cyclical, unique permutations of a set of vectors

This file was selected as MATLAB Central Pick of the Week

File Information
Description	Generate permutations of a set of vectors under flag control. The flags are 'all' (n factorial), even', 'odd', 'cycles', 'signs'. Combinations can be used. The flag 'unique' will remove duplicate entries. This file is a compatible extension of MATLAB perms(vec) where vec is a row vector. See also uniqueperms FEX # 18918.
Acknowledgements	This submission has inspired the following: Polytopes, Tumbling Bucky Ball
MATLAB release	MATLAB 7.2 (R2006a)

Tags for This File
Everyone's Tags	cycical(2), even(2), flag(2), odd(2), permutation generator(2), permutations(2), unique(2)
Tags I've Applied
Add New Tags	Please login to tag files.

Comments and Ratings (2)
30 Jan 2009	Rashid Iqbal	Dear can you please teach me about the dmperm function which calculate the permulation of adajancy matrix. Please explain this function with example. Regards, Rashid
23 Sep 2011	Bill McKeeman	The version of perms has a bug. It sometimes gives the even permutations instead of the odd permutations and vice versa. It has been corrected and reissued as FX32978. This version, FX10237 should soon be deleted.

Please login to add a comment or rating.

Updates
08 Mar 2006	Clean up HTML documentation
17 Mar 2006	clean up Mlint messages
26 Feb 2008	The MATLAB perms turns an N-D matrix into a vector before generating permutations. This perms accepts a matrix of input vectors. I added a comment. Also FEX uniqueperms #18918 is faster and less demanding of memory for the cases it handles.
26 Feb 2008	clean up HTML doc.
11 Apr 2009	Fix problem with R2009a, follow some MLINT advice
27 May 2009	license change
27 May 2009	fixed botched submission