const struct variable *var = psppire_var_view_get_variable (PSPPIRE_VAR_VIEW (rd->variable_treeview), 0, &iter);
nlp = g_hash_table_lookup (rdd->varmap, var);
const struct variable *var = psppire_var_view_get_variable (PSPPIRE_VAR_VIEW (rd->variable_treeview), 0, &iter);
nlp = g_hash_table_lookup (rdd->varmap, var);