def __call__(self, rho=None, k=None, N=None, norm=True):
    'Call the criteria function corresponding to :attr:`name`.'
    self.__norm = norm
    if (N is not None):
        self.N = N
    if (rho is not None):
        self.rho = rho
    if (k is not None):
        self.__k = k
    self.__norm = norm
    f = eval(self.name)
    self.data = f(self.N, self.rho, self.k)
    if ((self.old_data is not None) and (self.data is not None)):
        if (self.data > self.old_data):
            return False
        else:
            return True
    return True
Call the criteria function corresponding to :attr:`name`.
def __call__(self, rho=None, k=None, N=None, norm=True):
    
    self.__norm = norm
    if (N is not None):
        self.N = N
    if (rho is not None):
        self.rho = rho
    if (k is not None):
        self.__k = k
    self.__norm = norm
    f = eval(self.name)
    self.data = f(self.N, self.rho, self.k)
    if ((self.old_data is not None) and (self.data is not None)):
        if (self.data > self.old_data):
            return False
        else:
            return True
    return True