.. index:: rh
.. _rh_help:

  RH constructor.
 
  Usage:
 
    obj = rh(year, semi)
 
    obj = rh(dateString)
 
    obj = rh(datenumber)
 
  Inputs:
 
    - year: The year of the date.
 
    - semi: The semi-annual period (1 or 2).
 
    - dateString: A string in the format 'mm/dd/yyyy' or
      'yyyyHp' where p=1,2 or 'yyyy-mm-dd'.
 
    - datenumber: regular date number
 
  Example:
 
    dateObj = rh(2023, 1);
 
    dateObj = rh('2023H1');
 
    dateObj = rh('01/01/2023');
 
    dateObj = rh(737999);
 
  See also rd, rw, rm, rq, ra, ry