output: Introduce pivot tables.

[pspp] / src / math / covariance.h

diff --git a/src/math/covariance.h b/src/math/covariance.h
index ed5b3ee73426951d0084eb5df20f8492db541cb7..eef6019ddfe4259b58f9f049ba6bd40bcd153bc9 100644 (file)
--- a/src/math/covariance.h
+++ b/src/math/covariance.h
@@ -27,20 +27,20 @@ struct variable;
 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);
 
@@ -49,4 +49,8 @@ const gsl_matrix *covariance_moments (const struct covariance *cov, int m);
 const struct categoricals * covariance_get_categoricals (const struct covariance *cov);
 size_t covariance_dim (const struct covariance * cov);
 
+struct pivot_table *covariance_dump_enc_header (const struct covariance *);
+void covariance_dump_enc (const struct covariance *, const struct ccase *,
+                          struct pivot_table *);
+
 #endif