Get or set the era of a vector of years

Functions for extracting or assigning the era of a vector of years. This function does not alter the underlying values of x. Use yr_transform() to convert the values of a yr vector to a new era.

Usage

yr_era(x)

yr_set_era(x, era)

yr_era(x) <- value

Arguments

x

A vector of years.

value, era

An era object (see era()) to be assigned to x.

Value

yr_era(x) returns the existing era associated with x.

yr_set_era(x, era) and yr_era(x) <- era return x with the new era assigned. If x is not already a yr vector, it will attempt to coerce it into one.

See also

Other years with era functions: yr(), yr_transform()

Examples

x <- 5000:5050
yr_era(x) <- era("cal BP")
yr_era(x)
#> <era[1]>
#> [1] Before Present (cal BP): Gregorian years (365.2425 days), counted backwards from 1950