const struct variable *var = ost->vars[v];
const union value *val = case_data (c, var);
const struct variable *var = ost->vars[v];
const union value *val = case_data (c, var);
const double weight = dict_get_case_weight (dict, c, &warn);
const union value *val = case_data (c, var);
const double weight = dict_get_case_weight (dict, c, &warn);
const union value *val = case_data (c, var);