+/*
+ Return the estimated value of the coefficient.
+ */
+double
+pspp_linreg_coeff_get_est (const struct pspp_linreg_coeff *);
+
+/*
+ Return the standard error of the estimated coefficient.
+*/
+double
+pspp_linreg_coeff_get_std_err (const struct pspp_linreg_coeff *);
+