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tramo_options.c

/* 
 *  gretl -- Gnu Regression, Econometrics and Time-series Library
 *  Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

#include "libgretl.h"
#include <gtk/gtk.h>
#include "tramo_x12a.h"

typedef struct _tramo_options tramo_options;

struct _tramo_options {
    int rsa;      /* for standard auto setting, rsa = 3 (guide.pdf) */

    int iatip;    /* correction for outliers? 0=no, 1=auto */
    int aio;      /* sorts of outliers recognized (codes 1, 2, or 3;
                 0 is also acceptable in case only tramo is run) */
    float va;     /* critical value for outliers (or 0.0 for auto) */

    /* widgets for dealing with outliers */
    GtkWidget *iatip_button;
    GtkWidget *aio_transitory_button;
    GtkWidget *aio_shift_button;
    GtkWidget *aio_innov_button;
    GtkWidget *va_button;
    GtkWidget *va_spinner;
    GtkWidget *aio_label;
    GtkWidget *va_label;

    int lam;      /* log transformation? (0=logs, 1=levels, -1=auto) */
    int imean;    /* mean correction? (0=no, 1=yes) */

    int inic;     /* controls automatic model identification */
    int idif;     /* ditto */

    int auto_arima;  /* 1 = ARIMA spec will be left up to TRAMO; 
                  0 for manual specification */
    int d;        /* number of non-seasonal differences */
    int bd;       /* number of seasonal differences */
    int p;        /* number of non-seasonal AR terms */
    int bp;       /* number of seasonal AR terms */
    int q;        /* number of non-seasonal MA terms */
    int bq;       /* number of seasonal MA terms */

    /* widgets for dealing with ARIMA terms */
    GtkWidget *d_spin;
    GtkWidget *bd_spin;
    GtkWidget *p_spin;
    GtkWidget *bp_spin;
    GtkWidget *q_spin;
    GtkWidget *bq_spin;

    int mq;       /* periodicity (12 = monthly; acceptable values are
                 1, 2, 3, 4, 5, 6 and 12 */
    int noadmiss; /* when model "does not accept an admissible decomposition",
                 use an approximation (1) or not (0) */
    int seats;    /* 0: no SEATS input file created 
                 1: create SEATS file; estimation re-done in SEATS
                 2: create SEATS file; estimation not re-done in SEATS
              */
    int out;      /* verbosity level: 
                 0 = detailed output file per series
                 1 = reduced output file per series
                 2 = very brief summary
                 3 = no output file
              */

    tx_request *request; /* generic tramo/x-12-arima request struct */
};

#define option_widgets_shown(p)  (p->va_spinner != NULL)

static void tramo_options_set_defaults (tramo_options *opts, int pd)
{
    opts->rsa = 3;           /* standard auto analysis */
    opts->iatip = 1;         /* detect outliers */
    opts->aio = 2;           /* both transitory changes and level shifts */
    opts->va = 0.0;          /* let critical value be decided by tramo */
    opts->lam = -1;          /* leave log/level decision to tramo */
    opts->imean = 1;         /* mean correction */
    opts->auto_arima = 1;    /* leave ARIMA spec to tramo */
    opts->inic = 3;
    opts->idif = 3;
    opts->d = opts->bd = 1;  
    opts->p = opts->bp = 0;
    opts->q = opts->bq = 1;
    opts->mq = pd;
    opts->noadmiss = 1;      /* use approximation if needed */
    opts->seats = (pd > 1);  /* make SEATS file and re-do estimation? */
    opts->out = 0;           /* verbose */
}

static void 
tramo_custom_tabs_set_sensitive (GtkWidget *notebook, gboolean s)
{
    gint i;
    GtkWidget *page;

    for (i=2; i<5; i++) {
      page = gtk_notebook_get_nth_page(GTK_NOTEBOOK(notebook), i);
      gtk_widget_set_sensitive(page, s);
    }
}

static void main_auto_callback (GtkWidget *w, GtkWidget *notebook)
{
    tramo_options *opts = g_object_get_data(G_OBJECT(notebook), "opts");

    if (w == NULL || GTK_TOGGLE_BUTTON(w)->active) {
      tramo_custom_tabs_set_sensitive(notebook, FALSE);
      opts->rsa = 3;
    } else {
      tramo_custom_tabs_set_sensitive(notebook, TRUE);
      opts->rsa = 0;
    }
}

static void va_spinner_set_state (tramo_options *opts)
{
    if (!option_widgets_shown(opts)) return;
    
    gtk_widget_set_sensitive(opts->va_spinner, 
                       GTK_WIDGET_IS_SENSITIVE(opts->va_label) &&
                       !GTK_TOGGLE_BUTTON(opts->va_button)->active);
}

static void outlier_options_set_sensitive (tramo_options *opts, gboolean s)
{
    if (!option_widgets_shown(opts)) return;

    gtk_widget_set_sensitive(opts->aio_label, s);
    gtk_widget_set_sensitive(opts->aio_transitory_button, s);
    gtk_widget_set_sensitive(opts->aio_shift_button, s);
    gtk_widget_set_sensitive(opts->aio_innov_button, s && opts->seats == 0);
    gtk_widget_set_sensitive(opts->va_label, s);
    gtk_widget_set_sensitive(opts->va_button, s);
    va_spinner_set_state(opts);
}

static void flip_iatip (GtkWidget *w, tramo_options *opts)
{
    if (!option_widgets_shown(opts)) return;
    
    if (GTK_TOGGLE_BUTTON(w)->active) {
      outlier_options_set_sensitive(opts, TRUE);
      opts->iatip = 1;
    } else {
      outlier_options_set_sensitive(opts, FALSE);
      opts->iatip = 0;
    } 
}

static void flip_auto_va (GtkWidget *w, tramo_options *opts)
{
    if (!option_widgets_shown(opts)) return;  
  
    if (GTK_TOGGLE_BUTTON(w)->active) {
      gtk_widget_set_sensitive(opts->va_spinner, FALSE);
      opts->va = 0.0;
    } else {
      gtk_widget_set_sensitive(opts->va_spinner, TRUE);
    }
}

static void arima_options_set_sensitive (tramo_options *opts, gboolean s)
{
    gtk_widget_set_sensitive(opts->d_spin, s);
    gtk_widget_set_sensitive(opts->p_spin, s);
    gtk_widget_set_sensitive(opts->q_spin, s);

    if (opts->request->pd > 1) {
      gtk_widget_set_sensitive(opts->bd_spin, s);
      gtk_widget_set_sensitive(opts->bp_spin, s);
      gtk_widget_set_sensitive(opts->bq_spin, s);
    }
}

static void flip_auto_arima (GtkWidget *w, tramo_options *opts)
{
    if (!option_widgets_shown(opts)) return;  
  
    if (GTK_TOGGLE_BUTTON(w)->active) {
      arima_options_set_sensitive(opts, FALSE);
      opts->auto_arima = 1;
    } else {
      arima_options_set_sensitive(opts, TRUE);
      opts->auto_arima = 0;
    }
}

static void tramo_innov_callback (GtkWidget *w, tramo_options *opts)
{
    if (GTK_TOGGLE_BUTTON(w)->active) {
      gtk_toggle_button_set_active
          (GTK_TOGGLE_BUTTON(opts->aio_transitory_button), TRUE);
      gtk_toggle_button_set_active
          (GTK_TOGGLE_BUTTON(opts->aio_shift_button), TRUE);
      opts->aio = 0;
      opts->seats = 0;
    }
}

static void tramo_aio_callback (GtkWidget *w, tramo_options *opts)
{
    GtkWidget *other_button, *this_button = w;

    if (!option_widgets_shown(opts)) return;  

    if (this_button == opts->aio_transitory_button) {
      other_button = opts->aio_shift_button;
    } else {
      other_button = opts->aio_transitory_button;
    }

    /* must have at least one box checked */
    if (!GTK_TOGGLE_BUTTON(this_button)->active && 
      !GTK_TOGGLE_BUTTON(other_button)->active) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(other_button), TRUE);
    }

    if (GTK_TOGGLE_BUTTON(opts->aio_transitory_button)->active) {
      if (GTK_TOGGLE_BUTTON(opts->aio_shift_button)->active) {
          /* both transitory and level-shifts */
          opts->aio = 2;
      } else {
          /* only transitory */
          opts->aio = 1;
      }
    } else {
      /* only level-shifts */
      opts->aio = 3;
    }
}

static void 
seats_specific_widgets_set_sensitive (tramo_options *opts,
                              gboolean s)
{
    tx_request *request = opts->request;
    int i;

    if (opts->aio_innov_button != NULL) {
      gtk_widget_set_sensitive(opts->aio_innov_button, !s); 
    }
    
    for (i=0; i<N_COMMON_OPTS; i++) {
      if (request->opt[i].check != NULL) {
          gtk_widget_set_sensitive(request->opt[i].check, s);
      }
    }
}                             

static void real_set_seats (tramo_options *opts, gint val)
{
    if (val > 0) {
      seats_specific_widgets_set_sensitive(opts, TRUE);
    } else {
      seats_specific_widgets_set_sensitive(opts, FALSE);
    }

    opts->seats = val;
}

static void set_seats (GtkWidget *w, tramo_options *opts)
{
    real_set_seats(opts, 1);
}

static void set_no_seats (GtkWidget *w, tramo_options *opts)
{
    real_set_seats(opts, 0);
}


static void set_out (GtkWidget *w, tramo_options *opts)
{
    opts->out = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(w), 
                                      "out_value"));
}

static void set_lam (GtkWidget *w, tramo_options *opts)
{
    opts->lam = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(w), 
                                      "lam_value"));
}

static void set_imean (GtkWidget *w, tramo_options *opts)
{
    opts->imean = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(w), 
                                        "imean_value"));
}

static GtkWidget *make_notebook_page_table (GtkWidget *notebook, 
                                  const gchar *tab_title,
                                  gint rows, gint cols)
{
    GtkWidget *box, *tmp, *tbl;

    box = gtk_vbox_new(FALSE, 0);
    gtk_container_set_border_width(GTK_CONTAINER(box), 10);
    gtk_widget_show(box);

    tmp = gtk_label_new(tab_title);
    gtk_widget_show(tmp);

    gtk_notebook_append_page(GTK_NOTEBOOK(notebook), box, tmp);  

    tbl = gtk_table_new(rows, cols, FALSE);
    gtk_table_set_row_spacings(GTK_TABLE(tbl), 5);
    gtk_table_set_col_spacings(GTK_TABLE(tbl), 5);
    gtk_box_pack_start(GTK_BOX(box), tbl, FALSE, FALSE, 0);
    gtk_widget_show(tbl); 

    return tbl;
}

static void tramo_tab_general (GtkWidget *notebook, tx_request *request)
{
    GtkWidget *tbl, *tmp;
    int tbl_len = 4, row = 0;
    GSList *group = NULL;
    const char *radio_labels[] = {
      N_("Time-series model plus seasonal adjustment"),
      N_("Time-series model only")
    };
   
    tbl = make_notebook_page_table(notebook, _("General"), tbl_len, 2);

    /* checkbox for standard default run */
    tmp = gtk_check_button_new_with_label(_("Standard automatic analysis"));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), TRUE);
    g_object_set_data(G_OBJECT(notebook), "opts",
                  request->opts);
    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(main_auto_callback), 
                 notebook);

    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);    

    /* TRAMO + SEATS option */
    tmp = gtk_radio_button_new_with_label(NULL, _(radio_labels[0]));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (request->pd > 1));
    group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(tmp));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;

    if (request->pd == 1) {
      gtk_widget_set_sensitive(tmp, FALSE);
    } else {    
      g_signal_connect(G_OBJECT(tmp), "clicked",
                   G_CALLBACK(set_seats), 
                   request->opts);
    }

    /* TRAMO-only option */
    tmp = gtk_radio_button_new_with_label(group, _(radio_labels[1]));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (request->pd == 1));
    group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(tmp));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;

    if (request->pd == 1) {
      gtk_widget_set_sensitive(tmp, FALSE);
    } else {   
      g_signal_connect(G_OBJECT(tmp), "clicked",
                   G_CALLBACK(set_no_seats), 
                   request->opts);
    }
}

static void tramo_tab_output (GtkWidget *notebook, tx_request *request)
{
    GtkWidget *tbl, *tmp;
    int tbl_len = 10, row = 0;
    GSList *group = NULL;

    if (request->pd == 1) tbl_len -= 2;

    tbl = make_notebook_page_table(notebook, _("Output"), tbl_len, 2);

    /* label for output window detail */
    tmp = gtk_label_new(_("Output window:"));
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* full detail option */
    tmp = gtk_radio_button_new_with_label(NULL, _("Full details"));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), TRUE);    
    group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(tmp));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    
    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(set_out), 
                 request->opts);
    g_object_set_data(G_OBJECT(tmp), "out_value", 
                      GINT_TO_POINTER(0));

    /* reduced output option */
    tmp = gtk_radio_button_new_with_label(group, _("Reduced output"));
    group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(tmp));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(set_out), 
                 request->opts);
    g_object_set_data(G_OBJECT(tmp), "out_value", 
                      GINT_TO_POINTER(1));

    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);    

    /* label pertaining to saving series */
    tmp = gtk_label_new(_("Save to data set:"));
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    if (request->pd > 1) {
      tmp = gtk_check_button_new_with_label(_("Seasonally adjusted series"));
      gtk_widget_show(tmp);
      gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
      row++;
      request->opt[D11].check = tmp;
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), FALSE);
    } else {
      request->opt[D11].check = NULL;
    }

    tmp = gtk_check_button_new_with_label(_("Trend/cycle"));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;
    request->opt[D12].check = tmp;
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), FALSE);

    tmp = gtk_check_button_new_with_label(_("Irregular"));
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;
    request->opt[D13].check = tmp;
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), FALSE);

    tmp = gtk_hseparator_new();
    gtk_widget_show(tmp);
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
    row++;

    if (request->pd > 1) {
      tmp = gtk_check_button_new_with_label(_("Generate graph"));
      gtk_widget_show(tmp);
      gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1);
      request->opt[TRIGRAPH].check = tmp;
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), TRUE);
    } else {
      request->opt[TRIGRAPH].check = NULL;
    }
}

static void tramo_tab_transform (GtkWidget *notebook, tramo_options *opts)
{
    GtkWidget *b1, *b2, *b3, *tbl, *tmp;
    GSList *log_group = NULL, *mean_group = NULL;
    int tbl_len = 6, row = 0;

    tbl = make_notebook_page_table(notebook, _("Transformations"), tbl_len, 2);

    /* logs versus levels: radio group */

    /* logs option */
    b1 = gtk_radio_button_new_with_label(NULL, _("Log transformation"));
    log_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b1));
    gtk_widget_show(b1);
    gtk_table_attach_defaults(GTK_TABLE(tbl), b1, 0, 2, row, row + 1);
    row++;

    g_signal_connect(G_OBJECT(b1), "clicked",
                 G_CALLBACK(set_lam), 
                 opts);
    g_object_set_data(G_OBJECT(b1), "lam_value", 
                      GINT_TO_POINTER(0));

    /* no logs option */
    b2 = gtk_radio_button_new_with_label(log_group, _("No log transformation"));
    log_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b2));
    gtk_widget_show(b2);
    gtk_table_attach_defaults(GTK_TABLE(tbl), b2, 0, 2, row, row + 1);
    row++;

    g_signal_connect(G_OBJECT(b2), "clicked",
                 G_CALLBACK(set_lam), 
                 opts);
    g_object_set_data(G_OBJECT(b2), "lam_value", 
                      GINT_TO_POINTER(1));

    /* automatic log/level option */
    b3 = gtk_radio_button_new_with_label(log_group, _("Automatic"));
    log_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b3));
    gtk_widget_show(b3);
    gtk_table_attach_defaults(GTK_TABLE(tbl), b3, 0, 2, row, row + 1);
    row++;

    g_signal_connect(G_OBJECT(b3), "clicked",
                 G_CALLBACK(set_lam), 
                 opts);
    g_object_set_data(G_OBJECT(b3), "lam_value", 
                      GINT_TO_POINTER(-1));

    if (opts->lam == 0) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(b1), TRUE);
    } else if (opts->lam == 1) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(b2), TRUE);
    } else if (opts->lam == -1) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(b3), TRUE); 
    }

    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* mean correction: radio group */
    b1 = gtk_radio_button_new_with_label(NULL, _("Mean correction"));
    mean_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b1));
    gtk_widget_show(b1);
    gtk_table_attach_defaults(GTK_TABLE(tbl), b1, 0, 2, row, row + 1);
    row++;

    g_signal_connect(G_OBJECT(b1), "clicked",
                 G_CALLBACK(set_imean), 
                 opts);
    g_object_set_data(G_OBJECT(b1), "imean_value", 
                      GINT_TO_POINTER(1));

    b2 = gtk_radio_button_new_with_label(mean_group, _("No mean correction"));
    mean_group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(b2));
    gtk_widget_show(b2);
    gtk_table_attach_defaults(GTK_TABLE(tbl), b2, 0, 2, row, row + 1);

    g_signal_connect(G_OBJECT(b2), "clicked",
                 G_CALLBACK(set_imean), 
                 opts);
    g_object_set_data(G_OBJECT(b2), "imean_value", 
                      GINT_TO_POINTER(0));

    if (opts->imean == 0) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(b2), TRUE);
    } else if (opts->imean == 1) {
      gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(b1), TRUE);
    }
}

static void get_va_value (GtkSpinButton *sb, tramo_options *opts)
{
    opts->va = (float) gtk_spin_button_get_value(sb);
}

static void tramo_tab_outliers (GtkWidget *notebook, tramo_options *opts)
{
    GtkWidget *tbl, *tmp;
    GtkObject *adj;
    int tbl_len = 9, row = 0;

    tbl = make_notebook_page_table(notebook, _("Outliers"), tbl_len, 2);

    /* Overall choice: outlier correction or no? */
    tmp = gtk_check_button_new_with_label(_("Detect and correct for outliers"));
    opts->iatip_button = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (opts->iatip != 0));

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(flip_iatip), 
                 opts);

    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    
    /* label pertaining to transitory and level-shift buttons */
    tmp = gtk_label_new(_("Besides additive outliers, allow for:"));
    opts->aio_label = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* "transitory" button */
    tmp = gtk_check_button_new_with_label(_("transitory changes"));
    opts->aio_transitory_button = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (opts->aio < 3));

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(tramo_aio_callback), 
                 opts);

    /* level-shift button */
    tmp = gtk_check_button_new_with_label(_("shifts of level"));
    opts->aio_shift_button = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (opts->aio > 1));

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(tramo_aio_callback), 
                 opts);

    /* innovationals button */
    tmp = gtk_check_button_new_with_label(_("innovational outliers"));
    opts->aio_innov_button = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (opts->aio == 0));
    gtk_widget_set_sensitive(tmp, opts->seats == 0);

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(tramo_innov_callback), 
                 opts);
    
    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* label pertaining to critical value */
    tmp = gtk_label_new(_("Critical value for outliers:"));
    opts->va_label = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* check button for auto critical value */
    tmp = gtk_check_button_new_with_label(_("Automatic"));
    opts->va_button = tmp;
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), (opts->va == 0.0));

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(flip_auto_va), 
                 opts);

    /* spinner for manual critical value */
    adj = gtk_adjustment_new((opts->va == 0.0)? 3.3 : opts->va, 
                       2.1, 6.0, 0.1, 1.0, 0);
    tmp = gtk_spin_button_new(GTK_ADJUSTMENT(adj), 0.1, 1);
    opts->va_spinner = tmp;
    gtk_table_attach(GTK_TABLE(tbl), tmp, 0, 1, row, row + 1,
                 0, 0, 0, 0);
    gtk_widget_show(tmp);
    gtk_widget_set_sensitive(tmp, (opts->va != 0.0));

    g_signal_connect(G_OBJECT(tmp), "value-changed",
                 G_CALLBACK(get_va_value), 
                 opts);
}

static void arima_spin_callback (GtkSpinButton *sb, gint *var)
{
    *var = (int) gtk_spin_button_get_value(sb);
}

static GtkWidget *arima_spinner (const gchar *label, 
                         GtkWidget *tbl, gint row,
                         gint imax, gint *var)
{
    GtkWidget *w;
    GtkObject *adj;

    w = gtk_label_new(label);
    gtk_label_set_justify(GTK_LABEL(w), GTK_JUSTIFY_RIGHT);
    gtk_table_attach(GTK_TABLE(tbl), w, 0, 1, row, row + 1,
                 0, 0, 0, 0);
    gtk_widget_show(w);

    adj = gtk_adjustment_new(*var, 0, imax, 1, 1, 0);
    w = gtk_spin_button_new(GTK_ADJUSTMENT(adj), 1, 0);
    gtk_table_attach(GTK_TABLE(tbl), w, 1, 2, row, row + 1,
                 0, 0, 0, 0);
    g_signal_connect(G_OBJECT(w), "value-changed",
                 G_CALLBACK(arima_spin_callback), 
                 var);
    gtk_widget_show(w);

    return w;
}

static void tramo_tab_arima (GtkWidget *notebook, tramo_options *opts, int pd)
{
    GtkWidget *tbl, *tmp;
    int tbl_len = (pd == 1)? 7 : 10;
    int row = 0;

    tbl = make_notebook_page_table(notebook, _("ARIMA"), tbl_len, 2);
    gtk_table_set_homogeneous(GTK_TABLE(tbl), FALSE);

    /* auto versus manual button */
    tmp = gtk_check_button_new_with_label(_("Automatic"));
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tmp), opts->auto_arima);

    g_signal_connect(G_OBJECT(tmp), "clicked",
                 G_CALLBACK(flip_auto_arima), 
                 opts);

    /* difference terms */
    opts->d_spin = arima_spinner(_("Non-seasonal differences:"), tbl, row++,
                         3, &opts->d);

    if (pd > 1) {
      opts->bd_spin = arima_spinner(_("Seasonal differences:"), tbl, row++,
                              2, &opts->bd);
    } else {
      opts->bd_spin = NULL;
    }
          
    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* AR terms */
    opts->p_spin = arima_spinner(_("Non-seasonal AR terms:"), tbl, row++,
                         10, &opts->p);

    if (pd > 1) {
      opts->bp_spin = arima_spinner(_("Seasonal AR terms:"), tbl, row++,
                              2, &opts->bp);
    } else {
      opts->bp_spin = NULL;
    }

    /* horizontal separator */
    tmp = gtk_hseparator_new();
    gtk_table_attach_defaults(GTK_TABLE(tbl), tmp, 0, 2, row, row + 1);
    row++;
    gtk_widget_show(tmp);

    /* MA terms */
    opts->q_spin = arima_spinner(_("Non-seasonal MA terms:"), tbl, row++,
                         10, &opts->q);
    
    if (pd > 1) {
      opts->bq_spin = arima_spinner(_("Seasonal MA terms:"), tbl, row,
                              2, &opts->bq);
    } else {
      opts->bq_spin = NULL;
    }

    arima_options_set_sensitive(opts, (opts->auto_arima == 0));
}

static void real_show_tramo_options (tx_request *request, GtkWidget *vbox) 
{
    tramo_options *opts = (tramo_options *) request->opts;
    GtkWidget *book;

    book = gtk_notebook_new();
    gtk_box_pack_start(GTK_BOX(vbox), book, TRUE, TRUE, 0);
    gtk_widget_show(book);

    tramo_tab_general(book, request);    
    tramo_tab_output(book, request);
    tramo_tab_outliers(book, opts);
    tramo_tab_transform(book, opts);
    tramo_tab_arima(book, opts, request->pd);

    if (opts->rsa == 3) {
      main_auto_callback(NULL, book);
    }
}

static tramo_options *tramo_options_new (int pd)
{
    tramo_options *opts;

    opts = malloc(sizeof *opts);
    if (opts == NULL) return NULL;

    if (pd == 4 || pd == 12) {
      tramo_options_set_defaults(opts, pd);
    } else {
      tramo_options_set_defaults(opts, 0);
    }

    opts->iatip_button = NULL;
    opts->aio_transitory_button = NULL;
    opts->aio_shift_button = NULL;
    opts->va_button = NULL;
    opts->va_spinner = NULL;
    opts->aio_label = NULL;
    opts->va_label = NULL;    

    return opts;
}

int show_tramo_options (tx_request *request, GtkWidget *vbox)
{
    tramo_options *opts;

    opts = tramo_options_new(request->pd);
    if (opts == NULL) return 1;

    /* mutual pointer hook-up */
    request->opts = opts;
    opts->request = request;

    real_show_tramo_options(request, vbox);

    return 0;
}

/* Below: print then free the tramo options structure.
   Return an indication of whether seats will be run (1) or not (0)
*/

int print_tramo_options (tx_request *request, FILE *fp)
{
    tramo_options *opts;

    if (request->opts == NULL) return 0;

    opts = request->opts;

    fputs("$INPUT ", fp);

    if (opts->rsa == 3) {
      fputs("rsa=3,", fp);
      goto set_out;
    }

    /* note: if values are at their TRAMO defaults, don't bother
       printing them */

    if (opts->lam != -1) {
      fprintf(fp, "lam=%d,", opts->lam);
    }

    if (opts->imean != 1) {
      fprintf(fp, "imean=%d,", opts->imean);
    }

    fprintf(fp, "iatip=%d,", opts->iatip);

    if (opts->iatip == 1) {
      if (opts->aio != 2) {
          fprintf(fp, "aio=%d,", opts->aio);
      }
      if (opts->va != 0.0) {
          fprintf(fp, "va=%.1f,", opts->va);
      }
    }

    if (!opts->auto_arima) {
      fprintf(fp, "D=%d,BD=%d,", opts->d, opts->bd);
      fprintf(fp, "P=%d,BP=%d,", opts->p, opts->bp);
      fprintf(fp, "Q=%d,BQ=%d,", opts->q, opts->bq);
    } else {
      fprintf(fp, "inic=%d,", opts->inic);
      fprintf(fp, "idif=%d,", opts->idif);
    }

    if (opts->mq > 0) {
      fprintf(fp, "mq=%d,", opts->mq);
    }

    if (opts->noadmiss != 1) {
      fprintf(fp, "noadmiss=%d,", opts->noadmiss);
    }

    fprintf(fp, "seats=%d,", opts->seats);

 set_out:
    if (opts->out != 0) {
      fprintf(fp, "out=%d,", opts->out);
    }

    fputs("$\n", fp);

    free(opts);
    request->opts = NULL;

    return (opts->seats > 0);
}


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