Order rows in ascending or descending order.
arrange(.df, ...)df <- data.table(
  a = 1:3,
  b = 4:6,
  c = c("a", "a", "b")
)
df %>%
  arrange(c, -a)
#> # A tidytable: 3 × 3
#>       a     b c    
#>   <int> <int> <chr>
#> 1     2     5 a    
#> 2     1     4 a    
#> 3     3     6 b    
df %>%
  arrange(c, desc(a))
#> # A tidytable: 3 × 3
#>       a     b c    
#>   <int> <int> <chr>
#> 1     2     5 a    
#> 2     1     4 a    
#> 3     3     6 b