Convenient printing of time elapsed. A wrapper of
data.table::timetaken, but showing the results more directly.
sys_time_print(expr)
pst(expr)Valid R expression to be timed.
A character vector of the form HH:MM:SS,
or SS.MMMsec if under 60 seconds (invisibly for show_time). See examples.
sys_time_print(Sys.sleep(1))
#> [1] "# Finished in 1.020s elapsed (0.000s cpu)"
a = iris
sys_time_print({
res = iris %>%
mutate_dt(one = 1)
})
#> [1] "# Finished in 0.000s elapsed (0.000s cpu)"
res
#> Sepal.Length Sepal.Width Petal.Length Petal.Width Species one
#> <num> <num> <num> <num> <fctr> <num>
#> 1: 5.1 3.5 1.4 0.2 setosa 1
#> 2: 4.9 3.0 1.4 0.2 setosa 1
#> 3: 4.7 3.2 1.3 0.2 setosa 1
#> 4: 4.6 3.1 1.5 0.2 setosa 1
#> 5: 5.0 3.6 1.4 0.2 setosa 1
#> ---
#> 146: 6.7 3.0 5.2 2.3 virginica 1
#> 147: 6.3 2.5 5.0 1.9 virginica 1
#> 148: 6.5 3.0 5.2 2.0 virginica 1
#> 149: 6.2 3.4 5.4 2.3 virginica 1
#> 150: 5.9 3.0 5.1 1.8 virginica 1