%during%                Is a date covered by a grouped date
boundaries              Access the bounding dates of a grates object
epiweek_class           Epiweek class
get_interval_duration   The number of days covered
grouped_date_accessors
                        Accessors for grate objects
int_period_class        Integer-period class (Experimental)
isoweek_class           ISO Week class
month_class             Month class
period_class            Period class
print.grates_month      Format and print a month object
print.grates_period     Print a period object
print.grates_yearmonth
                        Format and print a yearmonth object
scale_x_grates_epiweek
                        Epiweek scale
scale_x_grates_int_period
                        Integer-period scale (Experimental)
scale_x_grates_isoweek
                        Isoweek scale
scale_x_grates_month    Month scale
scale_x_grates_period   Period scale
scale_x_grates_year     Year scale
scale_x_grates_yearmonth
                        Yearmonth scale
scale_x_grates_yearquarter
                        Yearquarter scale
scale_x_grates_yearweek
                        Yearweek scale
year_class              Year class
yearmonth_class         Yearmonth class
yearquarter_class       Yearquarter class
yearweek_class          Yearweek class
