GtkWidget *stats_treeview = get_widget_assert (xml, "statistics");
psppire_checkbox_treeview_populate (PSPPIRE_CHECKBOX_TREEVIEW (stats_treeview),
GtkWidget *stats_treeview = get_widget_assert (xml, "statistics");
psppire_checkbox_treeview_populate (PSPPIRE_CHECKBOX_TREEVIEW (stats_treeview),