rnd_assign: Randomly assign one unit into one of K groups

A simple randomizer, provides equal probability of assignment to one of many groups

rnd_assign(x, k, seed)

Arguments

x	a Vector to assign
k	Number of groups to assign
seed	A seed for random assignment reproducibility

Value

An array with x, k assignment groups, and the seed as an attribute

Examples

require(jumble)
x <- 1:100
rnd_assign(x, 2, as.integer(as.Date('2016-01-01')))
#> # A tibble: 100 x 2
#>       id group
#>    <int> <chr>
#>  1     1 a    
#>  2     2 b    
#>  3     3 b    
#>  4     4 b    
#>  5     5 b    
#>  6     6 b    
#>  7     7 a    
#>  8     8 b    
#>  9     9 b    
#> 10    10 a    
#> # … with 90 more rows