sgcrf.py 文件源码

def active_set_Theta(self, fixed, vary):
        grad = self.grad_wrt_Theta(fixed, vary)
        return np.where((np.abs(grad) > self.lamT) | (self.Theta != 0))
        # return np.where((np.abs(grad) > self.lamT) | (~np.isclose(self.Theta, 0)))