struct ccase ;
struct categoricals;
-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_1pass_create (size_t n_vars, const struct variable *const *vars,
+ const struct variable *wv, enum mv_class excl, bool centered);
struct covariance *
covariance_2pass_create (size_t n_vars, const struct variable *const *vars,
struct categoricals *cats,
- const struct variable *wv, enum mv_class excl);
+ const struct variable *wv, enum mv_class excl, bool centered);
void covariance_accumulate (struct covariance *, const struct ccase *);
void covariance_accumulate_pass1 (struct covariance *, const struct ccase *);
void covariance_accumulate_pass2 (struct covariance *, const struct ccase *);
gsl_matrix * covariance_calculate (struct covariance *);
-gsl_matrix * covariance_calculate_unnormalized (struct covariance *);
+const gsl_matrix * covariance_calculate_unnormalized (struct covariance *);
void covariance_destroy (struct covariance *cov);
const gsl_matrix *covariance_moments (const struct covariance *cov, int m);
const struct categoricals * covariance_get_categoricals (const struct covariance *cov);
-struct interaction;
-void covariance_get_interaction_indices (const struct covariance *cov, const struct interaction **iacts);
-
-void covariance_get_var_indices (const struct covariance *cov, const struct variable **vars);
size_t covariance_dim (const struct covariance * cov);
+
+struct tab_table ;
+void
+covariance_dump_enc (const struct covariance *cov, const struct ccase *c,
+ struct tab_table *t);
+
+struct tab_table *
+covariance_dump_enc_header (const struct covariance *cov, int length);
+
+
+
#endif