def to_lat deg, format = :dms, dp = 0
      deg = deg.normalize_lat
      _lat = Dms.to_dms deg, format, dp
      _lat == '' ? '' : _lat[1..-1] + (deg<0 ? 'S' : 'N')  # knock off initial '0' for lat!
    end
def to_lat deg, format = :dms, dp = 0
      deg = deg.normalize_lat
      _lat = Dms.to_dms deg, format, dp
      _lat == '' ? '' : _lat[1..-1] + (deg<0 ? 'S' : 'N')  # knock off initial '0' for lat!
    end
Convert numeric degrees to deg/min/sec latitude (suffixed with N/S)

 @param   {Number} deg: Degrees
 @param   {String} [format=dms]: Return value as 'd', 'dm', 'dms'
 @param   {Number} [dp=0|2|4]: No of decimal places to use - default 0 for dms, 2 for dm, 4 for d
 @returns {String} Deg/min/seconds