SGVector<float64_t> w = get_w();
	if (m_initialize_hyperplane)
	{
		w.resize_vector(num_feat);
		//start with uniform w, bias=0
		bias=0;
		linalg::add_scalar(w, 1.0 / num_feat);
	}
	SG_SPRINT("P: %d==%d==%d\n", get_w().vlen, num_feat, w.vlen);