breaks_width | R Documentation |
Useful for numeric, date, and date-time scales.
breaks_width(width, offset = 0)
width |
Distance between each break. Either a number, or for
date/times, a single string of the form |
offset |
Use if you don't want breaks to start at zero, or on a
conventional date or time boundary such as the 1st of January or midnight.
Either a number, or for date/times, a single string of the form
|
demo_continuous(c(0, 100)) demo_continuous(c(0, 100), breaks = breaks_width(10)) demo_continuous(c(0, 100), breaks = breaks_width(20, -4)) demo_continuous(c(0, 100), breaks = breaks_width(20, 4)) # This is also useful for dates one_month <- as.POSIXct(c("2020-05-01", "2020-06-01")) demo_datetime(one_month) demo_datetime(one_month, breaks = breaks_width("1 week")) demo_datetime(one_month, breaks = breaks_width("5 days")) # This is so useful that scale_x_datetime() has a shorthand: demo_datetime(one_month, date_breaks = "5 days") # hms times also work one_hour <- hms::hms(hours = 0:1) demo_time(one_hour) demo_time(one_hour, breaks = breaks_width("15 min")) demo_time(one_hour, breaks = breaks_width("600 sec")) # Offets are useful for years that begin on dates other than the 1st of # January, such as the UK financial year, which begins on the 1st of April. three_years <- as.POSIXct(c("2020-01-01", "2021-01-01", "2022-01-01")) demo_datetime( three_years, breaks = breaks_width("1 year", offset = "3 months") ) # The offset can be a vector, to create offsets that have compound units, # such as the UK fiscal (tax) year, which begins on the 6th of April. demo_datetime( three_years, breaks = breaks_width("1 year", offset = c("3 months", "5 days")) )
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