Last data update: 2014.03.03
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R: Generate all permutations of m elements of a vector
Generate all permutations of m elements of a vector
Description
Generate all permutations of x taken m at a time. If argument FUN is not NULL, applies a function given by the argument to each permutation.
Usage
permut(x, m=length(x), FUN=NULL,...)
Arguments
x |
vector source for permutations.
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m |
number of elements to choose. Default is m=length(x) .
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FUN |
function to be applied to each permutation; default NULL means the identity, i.e., to return the permutation.
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... |
optionally, further arguments to FUN.
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Details
Based on function permutations from package gtools . This function is required for the computation of the exact p-value of some randomness tests.
Value
A matrix with one permutation, or the value returned by FUN, in each line.
Results
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