permute_df() permutes a data set: it randomizes the order within each
variable, which breaks any association between them. Permutation is useful
for testing against null statistics.
permute_df(.data)a data.frame
a permuted data.frame
permute_df(iris)
#> # A tibble: 150 × 5
#> Sepal.Length Sepal.Width Petal.Length Petal.Width Species
#> <dbl> <dbl> <dbl> <dbl> <fct>
#> 1 5.2 3.3 5.5 0.3 versicolor
#> 2 6.3 2.8 5.2 1.8 virginica
#> 3 4.8 3 5.3 0.1 virginica
#> 4 6.3 3 5.1 2.4 virginica
#> 5 5 3 6.1 0.4 setosa
#> 6 6.5 3.8 5.1 1.3 setosa
#> 7 6.1 3.2 4.2 2.1 virginica
#> 8 6.7 4 1.7 0.4 setosa
#> 9 4.6 2.4 5.8 1 versicolor
#> 10 7.2 3 3.8 1.4 virginica
#> # ℹ 140 more rows