sys-file-info: Add IBM850 and DIN_66003 encodings.

[pspp] / src / math / covariance.h

diff --git a/src/math/covariance.h b/src/math/covariance.h
index 7345097195a6b207e6c9cd2e5e8d317ce43de885..2aee9f18b9e0c80a9fa684d58844bebe4442f4a2 100644 (file)
--- a/src/math/covariance.h
+++ b/src/math/covariance.h
@@ -40,7 +40,7 @@ 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);