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 *);