const struct variable *member;
const union value **vals = NULL;
n_vars = interaction_get_n_vars (iv);
const struct variable *member;
const union value **vals = NULL;
n_vars = interaction_get_n_vars (iv);
vals = xnmalloc (n_vars, sizeof (*vals));
for (i = 0; i < n_vars; i++)
vals = xnmalloc (n_vars, sizeof (*vals));
for (i = 0; i < n_vars; i++)