sgcrf.py 文件源码

def active_set_Lam(self, fixed, vary):
        grad = self.grad_wrt_Lam(fixed, vary)
        assert np.allclose(grad, grad.T, 1e-3)
        return np.where((np.abs(np.triu(grad)) > self.lamL) | (self.Lam != 0))
        # return np.where((np.abs(grad) > self.lamL) | (~np.isclose(self.Lam, 0)))