"selection-mode", GTK_SELECTION_SINGLE,
"predicate", var_is_numeric,
NULL);
psppire_selector_set_subjects (PSPPIRE_SELECTOR (selector),
"selection-mode", GTK_SELECTION_SINGLE,
"predicate", var_is_numeric,
NULL);
psppire_selector_set_subjects (PSPPIRE_SELECTOR (selector),