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perms | Examples See Also |
P = perms(v)
P = perms(v),
where v
is a row vector of length n
, creates a matrix whose rows consist of all possible permutations of the n
elements of v
. Matrix P
contains n!
rows and n
columns.
The command perms(2:2:6)
returns all the permutations of the numbers 2, 4, and 6:
6 4 2 4 6 2 6 2 4 2 6 4 4 2 6 2 4 6This function is only practical for situations where
n
is less than about 15.
nchoosek
Binomial coefficient or all combinations
permute
Rearrange the dimensions of a multidimensional array
randperm
Random permutation