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
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.
Arguments
x
A vector of years.
value, era
An era object (see era()) to be assigned to x.
See Also
Other years with era functions:
yr_transform(),
yr()