Add random direction — add_random

Simple fuction to assign random direction to each object in position object. Random means uniformly distributed value from 0 to 2 * pi (0 to 360 deg). The orientation guide using clock analogy: 0 = 3 o'clock, pi/2 = 12 o'clock, pi = 9 o'clock, 3*pi/2 = 6 o'clock

Usage

add_random_direction(position)

Arguments

position: tibble

Value

same tibble with extra direction column

Examples

position8c %>% add_random_direction()
#> # A tibble: 8 × 4
#>   object      x      y direction
#>    <int>  <dbl>  <dbl>     <dbl>
#> 1      1 -1.21  -1.84      0.925
#> 2      2 -3.74  -0.477     3.74 
#> 3      3 -3.28   5.01      4.17 
#> 4      4 -6.36  -0.809     1.09 
#> 5      5  4.18  -5.29      0.258
#> 6      6  0.853 -4.11      2.55 
#> 7      7 -5.21   3.55      1.74 
#> 8      8  5.53  -1.76      1.98