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When I am trying to run following function :
foo <- air_reserve %>%
mutate(reserve_date = date(reserve_datetime),
reserve_hour = hour(reserve_datetime),
reserve_wday = wday(reserve_datetime, label = TRUE),
visit_date = date(visit_datetime),
visit_hour = hour(visit_datetime),
visit_wday = wday(visit_datetime, label = TRUE),
diff_hour = time_length(visit_datetime - reserve_datetime, unit = "hour"),
diff_day = time_length(visit_datetime - reserve_datetime, unit = "day")
)
I am getting following error:
Error in mutate_impl(.data, dots) :
Evaluation error: non-numeric argument to binary operator.
How can I solve this issue ?
foo function is taken from this link
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لینک منبع
