t = tab_create (2, cnt + 1, 0);
tab_title (t, _("Mapping of variables to corresponding Z-scores."));
tab_columns (t, SOM_COL_DOWN, 1);
t = tab_create (2, cnt + 1, 0);
tab_title (t, _("Mapping of variables to corresponding Z-scores."));
tab_columns (t, SOM_COL_DOWN, 1);