def GetSparsityDivisor(self):
    self.means_temp2.assign(1)
    self.means_temp2.subtract(self.means)
    self.means_temp2.mult(self.means)
    return self.means_temp2
def GetSparsityDivisor(self):
    self.means_temp2.assign(1)
    self.means_temp2.subtract(self.means)
    self.means_temp2.mult(self.means)
    return self.means_temp2