linreg.c: (pspp_linreg_mse) New accessor function

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

diff --git a/src/math/linreg.h b/src/math/linreg.h
index adb9f16d8bf1c3fb7de898c75c64cb7e2c3ecd2c..f9d8c9b3f740abfc161ea7df2ecf20131985f700 100644 (file)
--- a/src/math/linreg.h
+++ b/src/math/linreg.h
@@ -21,6 +21,7 @@
 #include <gsl/gsl_vector.h>
 #include <gsl/gsl_matrix.h>
 #include <src/math/coefficient.h>
+#include <math/covariance-matrix.h>
 
 enum
 {
@@ -220,5 +221,6 @@ void pspp_linreg_set_indep_variable_mean (pspp_linreg_cache *, const struct vari
 /*
   Regression using only the covariance matrix.
  */
-int pspp_linreg_with_cov (const struct design_matrix *, pspp_linreg_cache *);
+void pspp_linreg_with_cov (const struct covariance_matrix *, pspp_linreg_cache *);
+double pspp_linreg_mse (const pspp_linreg_cache *);
 #endif