Generate all permutations of m elements of a vector
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.
permut(x, m=length(x), FUN=NULL,...)
x |
vector source for permutations. |
m |
number of elements to choose. Default is |
FUN |
function to be applied to each permutation; default NULL means the identity, i.e., to return the permutation. |
... |
optionally, further arguments to FUN. |
Based on function permutations from package gtools. This function is required for the computation of the exact p-value of some randomness tests.
A matrix with one permutation, or the value returned by FUN, in each line.
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