struct categoricals *categoricals_create (const struct variable *const *v, size_t n_vars,
const struct variable *wv, enum mv_class exclude,
user_data_create_func *udf,
struct categoricals *categoricals_create (const struct variable *const *v, size_t n_vars,
const struct variable *wv, enum mv_class exclude,
user_data_create_func *udf,