Conversion Between Permutation Vector and Permutation Matrix

Converts between permutation vectors and matrices.

Usage

permutation_vector2matrix(x)

permutation_matrix2vector(x)

Arguments

x

A permutation vector (any object that can be converted into a permutation vector, e.g., a integer vector or a hclust object) or a matrix representing a permutation. Arguments are checked.

Value

• permutation_vector2matrix(): returns a permutation matrix.

• permutation_matrix2vector(): returns the permutation as a integer vector.

See also

Other permutation: get_order(), permute(), reorder.hclust(), ser_dist(), ser_permutation(), ser_permutation_vector()

Author

Michael Hahsler

Examples

## create a random permutation vector
pv <- structure(sample(5), names = paste0("X", 1:5))
pv
#> X1 X2 X3 X4 X5 
#>  1  2  3  5  4 

## convert into a permutation matrix
pm <- permutation_vector2matrix(pv)
pm
#>    X1 X2 X3 X4 X5
#> X1  1  0  0  0  0
#> X2  0  1  0  0  0
#> X3  0  0  1  0  0
#> X4  0  0  0  0  1
#> X5  0  0  0  1  0

## convert back
permutation_matrix2vector(pm)
#> X1 X2 X3 X4 X5 
#>  1  2  3  5  4