pretty_dates: Computes attractive axis breaks for date-time data

In lubridate: Make Dealing with Dates a Little Easier

Computes attractive axis breaks for date-time data

Description

pretty_dates() identifies which unit of time the sub-intervals should be measured in to provide approximately n breaks, then chooses a "pretty" length for the sub-intervals and sets start and end points that 1) span the entire range of the data, and 2) allow the breaks to occur on important date-times (i.e. on the hour, on the first of the month, etc.)

Usage

pretty_dates(x, n, ...)

Arguments

x	a vector of POSIXct, POSIXlt, Date, or chron date-time objects
n	integer value of the desired number of breaks
...	additional arguments to pass to function

Value

a vector of date-times that can be used as axis tick marks or bin breaks

Examples

x <- seq.Date(as.Date("2009-08-02"), by = "year", length.out = 2)
pretty_dates(x, 12)

lubridate documentation built on April 3, 2025, 6:43 p.m.