Coerce an object to year-quarter

as_yearquarter() is a generic for coercing input in to <grates_yearquarter>. Character input is first parsed using as.Date(). POSIXct and POSIXlt are all converted, with the timezone respected.

Usage

as_yearquarter(x, ...)

# Default S3 method
as_yearquarter(x, ...)

# S3 method for class 'Date'
as_yearquarter(x, ...)

# S3 method for class 'POSIXt'
as_yearquarter(x, ...)

# S3 method for class 'character'
as_yearquarter(x, ...)

# S3 method for class 'factor'
as_yearquarter(x, ...)

Arguments

x

R object

...

Only used For character input where additional arguments are passed through to as.Date().

Value

A <grates_yearquarter> object.

Note

Internally <grates_yearquarter> objects are stored as the number of quarters (starting at 0) since the Unix Epoch (1970-01-01).

See also

as.Date()

Examples

as_yearquarter(Sys.Date())
#> <grates_yearquarter[1]>
#> [1] "2024-Q4"
as_yearquarter(as.POSIXct("2019-03-04 01:01:01", tz = "America/New_York"), interval = 2)
#> <grates_yearquarter[1]>
#> [1] "2019-Q1"
as_yearquarter("2019-05-03")
#> <grates_yearquarter[1]>
#> [1] "2019-Q2"