/** ******************* Graph Panel ************************** */
// TODO: aggiungere i grafici corretti che si zoommano e allargano
graphPanel.setBorder(new TitledBorder(new EtchedBorder(EtchedBorder.LOWERED), "Graphs"));
JTabbedPane graphsTabbed = new JTabbedPane();
JPanel graph = new JPanel();
plo = new SmallPlotDistGraph(model);
plo.setSize(new Dimension(330, 120));
graph.add(plo);
graphsTabbed.addTab("Frequencies", graph);
graph1 = new QQPlotPreviewPanel(model);
graph1.setSize(new Dimension(330, 120));