R: Year-Based Time Scales

# Year-Based Time Scales

## Documentation for package ‘era’ version 0.5.0

- DESCRIPTION file
- User guides, package vignettes and other documentation
- Package NEWS
- Package README

## Help Pages

era | Create an era object
eras | Standard era definitions
era_direction | Get parameters of an era
era_epoch | Get parameters of an era
era_label | Get parameters of an era
era_name | Get parameters of an era
era_parameters | Get parameters of an era
era_scale | Get parameters of an era
era_unit | Get parameters of an era
era_year | Year units
era_year_days | Get the parameters of an 'era_year' object.
era_year_label | Get the parameters of an 'era_year' object.
era_year_parameters | Get the parameters of an 'era_year' object.
is_era | Validation functions for 'era' objects
is_era_year | Validation functions for 'era_year' objects
is_valid_era | Validation functions for 'era' objects
is_valid_yr | Validation functions for 'yr' objects
is_yr | Validation functions for 'yr' objects
this_year | Current year
validate_era | Validation functions for 'era' objects
validate_yr | Validation functions for 'yr' objects
yr | Create a vector of years with era
yr_earliest | Chronological minima and maxima
yr_era | Get or set the era of a vector of years
yr_era<- | Get or set the era of a vector of years
yr_extremes | Chronological minima and maxima
yr_latest | Chronological minima and maxima
yr_range | Chronological minima and maxima
yr_set_era | Get or set the era of a vector of years
yr_sort | Chronological ordering of year vectors
yr_transform | Convert years from one era to another