(self, order=2, diff_order=0)
Parameters:
            -----------

            order: int
                the order of the 'autoregressiveness'
            diff_order: int
                the differencing order used
                TODO: Not used so far!
Parameters:
            -----------
Parameters : -----------
def __init__(self, order=2, diff_order=0):
        """
            Parameters:
            -----------

            order: int
                the order of the 'autoregressiveness'
            diff_order: int
                the differencing order used
                TODO: Not used so far!
        """
        self.order = order
        self.diff_order = diff_order
def __init__ ( self , order = 2 , diff_order = 0 ) : self . order = order self . diff_order = diff_order