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Use explicit ifelse

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Fixes #852
This commit is contained in:
Hadley Wickham
2021-04-18 09:29:27 -05:00
parent 42bbae55d3
commit 023606e9aa
1 changed files with 1 additions and 1 deletions
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datetimes.Rmd
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@@ -486,7 +486,7 @@ We can fix this by adding `days(1)` to the arrival time of each overnight flight
flights_dt <- flights_dt %>% flights_dt <- flights_dt %>%
mutate( mutate(
overnight = arr_time < dep_time, overnight = arr_time < dep_time,
arr_time = arr_time + days(overnight * 1), arr_time = arr_time + days(ifelse(overnight, 0, 1)),
sched_arr_time = sched_arr_time + days(overnight * 1) sched_arr_time = sched_arr_time + days(overnight * 1)
) )
``` ```