New function covariance_2pass_create

[pspp-builds.git] / src / math / covariance.h

diff --git a/src/math/covariance.h b/src/math/covariance.h
index 8b8de88e9fa0b1ebfa277f9d25b41e6bf8e5ed0a..ee096af6e0f758b0ddfc0710b6c00e024ebaf4e0 100644 (file)
--- a/src/math/covariance.h
+++ b/src/math/covariance.h
@@ -29,6 +29,10 @@ struct ccase ;
 
 struct covariance * covariance_create (size_t n_vars, const struct variable **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, 
+                        const struct variable *weight, enum mv_class excl);
 
 void covariance_accumulate (struct covariance *, const struct ccase *);