# pretty.Date

##### Pretty Breakpoints for Date-Time Classes

Compute a sequence of about `n+1`

equally spaced ‘nice’
values which cover the range of the values in `x`

, possibly of
length one, when `min.n = 0`

and there is only one unique
`x`

.

- Keywords
- dplot

##### Usage

```
# S3 method for Date
pretty(x, n = 5, min.n = n %/% 2, sep = " ", …)
# S3 method for POSIXt
pretty(x, n = 5, min.n = n %/% 2, sep = " ", …)
```

##### Arguments

- x
an object of class

`"Date"`

or`"POSIXt"`

(i.e.,`"POSIXct"`

or`"POSIXlt"`

).- n
integer giving the

*desired*number of intervals.- min.n
nonnegative integer giving the

*minimal*number of intervals.- sep
character string, serving as a separator for certain formats (e.g., between month and year).

- …
further arguments for compatibility with the generic, ignored.

##### Value

A vector (of the suitable class) of locations, with attribute
`"labels"`

giving corresponding formatted character labels.

##### See Also

`pretty`

for the default method.

##### Examples

`library(grDevices)`

```
<!-- % time-dependent -->
pretty(Sys.Date())
pretty(Sys.time(), n = 10)
pretty(as.Date("2000-03-01")) # R 1.0.0 came in a leap year
## time ranges in diverse scales:% also in ../../../../tests/reg-tests-1c.R
require(stats)
steps <- setNames(,
c("10 secs", "1 min", "5 mins", "30 mins", "6 hours", "12 hours",
"1 DSTday", "2 weeks", "1 month", "6 months", "1 year",
"10 years", "50 years", "1000 years"))
x <- as.POSIXct("2002-02-02 02:02")
lapply(steps,
function(s) {
at <- pretty(seq(x, by = s, length = 2), n = 5)
attr(at, "labels")
})
```

*Documentation reproduced from package grDevices, version 3.4.1, License: Part of R 3.4.1*

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