gsi2.invperm {compositions}R Documentation

Internal function: Invert a permutation

Description

Finds the inverse of a permutation given as a vector of indices.

Usage

gsi2.invperm( i,n )

Arguments

i a sequence of different integers in 1:n considered as a permutation given by p=unique(c(i,1:n))
n the number of elements to be permuted

Details

The inverse permutation is defined by p[\var{v}]==1:n and v[\var{p}]==1:n.

Value

an integer vector v describing the inverse permutation of p.

Note

Do not use gsi.* functions directly since they are internal functions of the package

References

See Also

gsi

Examples

gsi2.invperm(c(2,3),10)

[Package compositions version 0.9-10 Index]