struct covariance;
struct variable;
struct ccase ;
+struct categoricals;
-struct covariance * covariance_1pass_create (size_t n_vars, const struct variable **vars,
+struct covariance * covariance_1pass_create (size_t n_vars, const struct variable *const *vars,
const struct variable *wv, enum mv_class excl);
struct covariance *
-covariance_2pass_create (size_t n_vars, const struct variable **vars,
- size_t n_catvars, const struct variable **catvars,
+covariance_2pass_create (size_t n_vars, const struct variable *const *vars,
+ struct categoricals *cats,
const struct variable *wv, enum mv_class excl);
void covariance_accumulate (struct covariance *, const struct ccase *);
const gsl_matrix *covariance_moments (const struct covariance *cov, int m);
+const struct categoricals * covariance_get_categoricals (const struct covariance *cov);
+
#endif