Equally spaced breaks

Useful for numeric, date, and date-time scales.

breaks_width(width, offset = 0)

Arguments

width	Distance between each break. Either a number, or for date/times, a single string of the form "n unit", e.g. "1 month", "5 days". Unit can be of one "sec", "min", "hour", "day", "week", "month", "year".
offset	Use if you don't want breaks to start at zero

Examples

demo_continuous(c(0, 100))
#> scale_x_continuous()
demo_continuous(c(0, 100), breaks = breaks_width(10))
#> scale_x_continuous(breaks = breaks_width(10))
demo_continuous(c(0, 100), breaks = breaks_width(20, -4))
#> scale_x_continuous(breaks = breaks_width(20, -4))
demo_continuous(c(0, 100), breaks = breaks_width(20, 4))
#> scale_x_continuous(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)
#> scale_x_datetime()
demo_datetime(one_month, breaks = breaks_width("1 week"))
#> scale_x_datetime(breaks = breaks_width("1 week"))
demo_datetime(one_month, breaks = breaks_width("5 days"))
#> scale_x_datetime(breaks = breaks_width("5 days"))
# This is so useful that scale_x_datetime() has a shorthand:
demo_datetime(one_month, date_breaks = "5 days")
#> scale_x_datetime(date_breaks = "5 days")

# hms times also work
one_hour <- hms::hms(hours = 0:1)
demo_time(one_hour)
#> scale_x_time()
demo_time(one_hour, breaks = breaks_width("15 min"))
#> scale_x_time(breaks = breaks_width("15 min"))
demo_time(one_hour, breaks = breaks_width("600 sec"))
#> scale_x_time(breaks = breaks_width("600 sec"))