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Given a chron or times object, extract the hours, minutes or seconds of the time it represents.
hours(x) minutes(x) seconds(x)
the corresponding time period as an ordered factor.
an object inheriting from class "times", or coercible to such via as.chron.
"times"
as.chron
chron, dates, times
chron
dates
times
x <- chron(dates. = c("02/27/92", "02/27/92", "01/14/92", "02/28/92"), times. = c("23:03:20", "22:29:56", "01:03:30", "18:21:03")) h <- hours(x) y <- runif(4) boxplot(y ~ h)
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