void PLUDecomposite(PMatrix *P) {
     for (int k = 1; k <= n()-1; ++k) {
         int m = k;
         for (int i = k+1; i <= n(); ++i) {
             if (fabs(M(i, k)) > fabs(M(m, k))) {
                 m = i;
             }
         }
         if (fabs(M(m, k) + 0.0) < 1e-15) {
             _reg = false;
             return;
         }
         if (m != k) {
             swapRows(m, k);
             P -> swapRows(m, k);
         }
         for (int i = k+1; i <= n(); ++i) {
             setM(i, k, M(i, k) / M(k, k));
             for (int j = k+1; j <= n(); ++j) {
                 setM(i, j, M(i, j) - M(i, k) * M (k, j));
             }
         }
     }
     _reg = fabs(M(n(), n())) >= 1e-15;
 }
 void swapRows(int i1, int i2) {
     for (int i = 1; i <= n(); ++i) {
         double tmp = M(i1, i);
         setM(i1, i, M(i2, i));
         setM(i2, i, tmp);
     }
 }
示例#3
0
bool LL1Parser::constructLL1Table()
{
	m.clear();

	g.computeFollow();

	vector<string> v = g.v;
	vector<string> t = g.t;
	vector<Production> p = g.p;
	bool succeed = true;

	m.assign(v.size(), vector<int>(t.size() + 1, -1));
	// row: variables, column: terminals + $
	// elements: production indices

	for(size_t i = 0; i < p.size(); ++i)
	{
		// A -> alpha
		string A = p[i].left;
		int AIndex = g.getVariableIndex(A);
		vector<string> firstAlpha = g.computeFirst(p[i].right);

		for(size_t j = 0; j < firstAlpha.size(); ++j)
		{
			string a = firstAlpha[j];
			if(a != "")
			{
				if(!setM(AIndex, g.getTerminalIndex(a), i))
				{
					succeed = false;
				}
			}
		}

		if(in(string(""), firstAlpha))
		{
			vector<string> followA = g.follow[g.getFollowIndex(A)].second;
			for(size_t j = 0; j < followA.size(); ++j)
			{
				if(followA[j] != "$")
				{
					if(!setM(AIndex, g.getTerminalIndex(followA[j]), i))
					{
						succeed = false;
					}
				}
				else
				{
					if(!setM(AIndex, t.size(), i))
					{
						succeed = false;
					}
				}
			}
		}
	}

	return succeed;
}
示例#4
0
 Mahalanobis::Mahalanobis(arma::mat M) {
     setM(M / M(0,0));
 }
static void
create_markerss (void)
{
   GtkWidget *window = NULL;
   GtkWidget *box1;
   GtkWidget *box2;
   GtkWidget *close_button;
   GtkWidget *box;
   GtkWidget *table;
   GtkWidget *label;
   GtkWidget *separator;
   gfloat *X;
   gfloat *Y;
   gint i;
   GtkDataboxGraph *graph;
   GdkColor color;

   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   gtk_widget_set_size_request (window, 600, 600);

   g_signal_connect (GTK_OBJECT (window), "destroy",
		     G_CALLBACK (gtk_main_quit), NULL);

   gtk_window_set_title (GTK_WINDOW (window), "GtkDatabox: Markers");
   gtk_container_set_border_width (GTK_CONTAINER (window), 0);

   box1 = gtk_vbox_new (FALSE, 0);
   gtk_container_add (GTK_CONTAINER (window), box1);

   label =
      gtk_label_new
      ("Some markerss (green) are shown below.\nThe text corresponds to the position of the text, relative to the markers.\n\nThere are also some texts (yellow).\n\nData points are red\n");
   gtk_box_pack_start (GTK_BOX (box1), label, FALSE, FALSE, 0);
   separator = gtk_hseparator_new ();
   gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, FALSE, 0);

   gtk_databox_create_box_with_scrollbars_and_rulers (&box, &table,
						      TRUE, TRUE, TRUE, TRUE);
   gtk_box_pack_start (GTK_BOX (box1), table, TRUE, TRUE, 0);

   color.red = 16383;
   color.green = 16383;
   color.blue = 16383;
   gtk_widget_modify_bg (box, GTK_STATE_NORMAL, &color);

   X = g_new0 (gfloat, 20 + 4 + 5);
   Y = g_new0 (gfloat, 20 + 4 + 5);

   for (i = 0; i < 20 + 4 + 5; ++i)
   {
      X[i] = i % 4;
      Y[i] = i / 4;
   }
   X[20] = -0.5;
   Y[20] = -0.5;
   X[21] = -0.5;
   Y[21] = 4.5;
   X[22] = 3.5;
   Y[22] = -0.5;
   X[23] = 3.5;
   Y[23] = 4.5;

   X[24] = -1.;
   Y[24] = -1.;
   X[25] = -1.;
   Y[25] = +5.;
   X[26] = +4.;
   Y[26] = -1.;
   X[27] = +4.;
   Y[27] = +5.;
   X[28] = +1.5;
   Y[28] = +2.;

   color.red = 65535;
   color.green = 0;
   color.blue = 0;

   graph = gtk_databox_points_new (20 + 4 + 5, X, Y, &color, 3);
   gtk_databox_graph_add (GTK_DATABOX (box), graph);

   color.red = 0;
   color.green = 65535;
   color.blue = 0;

   graph = gtk_databox_markers_new (20, X, Y, &color, 15,
				   GTK_DATABOX_MARKERS_TRIANGLE);

   gtk_databox_graph_add (GTK_DATABOX (box), graph);
   setM (graph, 0, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_W, "West", FALSE);
   setM (graph, 1, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_N, "North", FALSE);
   setM (graph, 2, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_S, "South", FALSE);
   setM (graph, 3, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_E, "East", FALSE);

   setM (graph, 4, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_W, "West", TRUE);
   setM (graph, 5, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_N, "North", TRUE);
   setM (graph, 6, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_S, "South", TRUE);
   setM (graph, 7, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_E, "East", TRUE);

   setM (graph, 8, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_W, "West", TRUE);
   setM (graph, 9, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_N, "North", TRUE);
   setM (graph, 10, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_S, "South", TRUE);
   setM (graph, 11, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_E, "East", TRUE);

   setM (graph, 12, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_S, "South", TRUE);
   setM (graph, 13, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_W, "West", TRUE);
   setM (graph, 14, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_E, "East", TRUE);
   setM (graph, 15, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_N, "North", TRUE);

   setM (graph, 16, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_SW, "SW", TRUE);
   setM (graph, 17, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_NW, "NW", TRUE);
   setM (graph, 18, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_SE, "SE", TRUE);
   setM (graph, 19, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_NE, "NE", TRUE);


   graph = gtk_databox_markers_new (4, X + 20, Y + 20, &color, 1,
				   GTK_DATABOX_MARKERS_DASHED_LINE);

   gtk_databox_graph_add (GTK_DATABOX (box), graph);
   setL (graph, 0, GTK_DATABOX_MARKERS_N, GTK_DATABOX_MARKERS_TEXT_W, "West", TRUE);
   setL (graph, 1, GTK_DATABOX_MARKERS_E, GTK_DATABOX_MARKERS_TEXT_S, "South", TRUE);
   setL (graph, 2, GTK_DATABOX_MARKERS_W, GTK_DATABOX_MARKERS_TEXT_N, "North", TRUE);
   setL (graph, 3, GTK_DATABOX_MARKERS_S, GTK_DATABOX_MARKERS_TEXT_E, "East", TRUE);

   color.red = 65535;
   color.green = 65535;
   color.blue = 0;

   graph = gtk_databox_markers_new (5, X + 20 + 4, Y + 20 + 4, &color, 1,
				   GTK_DATABOX_MARKERS_NONE);

   gtk_databox_graph_add (GTK_DATABOX (box), graph);
   setT (graph, 0, GTK_DATABOX_MARKERS_TEXT_N, "North", FALSE);
   setT (graph, 1, GTK_DATABOX_MARKERS_TEXT_E, "East", FALSE);
   setT (graph, 2, GTK_DATABOX_MARKERS_TEXT_S, "South", FALSE);
   setT (graph, 3, GTK_DATABOX_MARKERS_TEXT_W, "West", FALSE);
   setT (graph, 4, GTK_DATABOX_MARKERS_TEXT_CENTER, "Centered", TRUE);


   gtk_databox_auto_rescale (GTK_DATABOX (box), 0.05);

   separator = gtk_hseparator_new ();
   gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

   box2 = gtk_vbox_new (FALSE, 10);
   gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
   gtk_box_pack_end (GTK_BOX (box1), box2, FALSE, TRUE, 0);
   close_button = gtk_button_new_with_label ("close");
   g_signal_connect_swapped (GTK_OBJECT (close_button), "clicked",
			     G_CALLBACK (gtk_main_quit), GTK_OBJECT (box));
   gtk_box_pack_start (GTK_BOX (box2), close_button, TRUE, TRUE, 0);
   gtk_widget_set_can_default(close_button, GTK_CAN_DEFAULT);
   gtk_widget_grab_default (close_button);

   gtk_widget_show_all (window);

}