.. index:: ry
.. _ry_help:

  RY constructor for YearlyDate.
 
  Usage:
 
    obj = ry(year)
 
    obj = ry(dateString)
 
    dateObj = ry(datenumber);
 
  Inputs:
 
    - year: Year of the date in double (e.g., 2023)
 
    - dateString: A string in the format 'mm/dd/yyyy' or 'yyyy' or 'yyyy-mm-dd'
 
    - datenumber: A regular matlab datenumber. Note that the
      function will treat the input as a date number if it has
      more than 4 digits. A warning will be issued as well
 
  Example:
 
    dateObj = ry(2023);
 
    dateObj = ry('2023');
 
    dateObj = ry('01/01/2023');
 
    dateObj = ry(737999);
 
  See also rd, rw, rm, rq, rh, ra.