-static void reg_stats_r (linreg *, void *, const struct variable *);
-static void reg_stats_coeff (linreg *, void *, const struct variable *);
-static void reg_stats_anova (linreg *, void *, const struct variable *);
-static void reg_stats_bcov (linreg *, void *, const struct variable *);
-
-static void
-statistics_keyword_output (void (*)
- (linreg *, void *, const struct variable *), bool,
- linreg *, void *, const struct variable *);
-
+static void reg_stats_r (const linreg *, const struct variable *);
+static void reg_stats_coeff (const linreg *, const gsl_matrix *, const struct variable *);
+static void reg_stats_anova (const linreg *, const struct variable *);
+static void reg_stats_bcov (const linreg *, const struct variable *);