linreg: Remove some unused features

diff --git a/src/math/linreg.c b/src/math/linreg.c
index 47d21cf8f5fdfed7f357f96f45038493374b6aab..92617aeadff30b091ad41a2e1c8f88cf4ce1986d 100644 (file)
--- a/src/math/linreg.c
+++ b/src/math/linreg.c
@@ -86,9 +86,6 @@ linreg_alloc (const struct variable *depvar, const struct variable **indep_vars,
   c->indep_means = gsl_vector_alloc (p);
   c->indep_std = gsl_vector_alloc (p);
 
-  c->ss_indeps = gsl_vector_alloc (p); /* Sums of squares for the
-                                          model parameters.
-                                        */
   c->n_obs = n;
   c->n_indeps = p;
   c->n_coeffs = p;
@@ -99,7 +96,6 @@ linreg_alloc (const struct variable *depvar, const struct variable **indep_vars,
   c->dfe = c->dft - c->dfm;
   c->intercept = 0.0;
   c->depvar_mean = 0.0;
-  c->depvar_std = 0.0;
   /*
      Default settings.
    */
@@ -124,7 +120,6 @@ linreg_unref (linreg *c)
     {
       gsl_vector_free (c->indep_means);
       gsl_vector_free (c->indep_std);
-      gsl_vector_free (c->ss_indeps);
       gsl_matrix_free (c->cov);
       free (c->indep_vars);
       free (c->coeff);
@@ -249,18 +244,6 @@ linreg_residual (const linreg *c, double obs, const double *vals, size_t n_vals)
   return (obs - linreg_predict (c, vals, n_vals));
 }
 
-double linreg_get_indep_variable_sd (linreg *c, size_t j)
-{
-  assert (c != NULL);
-  return gsl_vector_get (c->indep_std, j);
-}
-
-void linreg_set_indep_variable_sd (linreg *c, size_t j, double s)
-{
-  assert (c != NULL);
-  gsl_vector_set (c->indep_std, j, s);
-}
-
 /*
   Mean of the independent variable.
  */

diff --git a/src/math/linreg.h b/src/math/linreg.h
index e53a02956e2077e91f58ede8268ed68ab71fd60d..c4bec321b6631360bdb4ff5fd88120cc67e9a0e9 100644 (file)
--- a/src/math/linreg.h
+++ b/src/math/linreg.h
@@ -115,7 +115,6 @@ struct linreg_struct
      column of the design matrix.
    */
   double depvar_mean;
-  double depvar_std;
   gsl_vector *indep_means;
   gsl_vector *indep_std;
 
@@ -123,8 +122,6 @@ struct linreg_struct
      Sums of squares.
    */
   double ssm;                  /* Sums of squares for the overall model. */
-  gsl_vector *ss_indeps;       /* Sums of squares from each
-                                  independent variable. */
   double sst;                  /* Sum of squares total. */
   double sse;                  /* Sum of squares error. */
   double mse;                  /* Mean squared error. This is just sse /
@@ -171,11 +168,6 @@ double
 linreg_residual (const linreg *, double, const double *, size_t);
 const struct variable ** linreg_get_vars (const linreg *);
 
-/*
-  Return or set the standard deviation of the independent variable.
- */
-double linreg_get_indep_variable_sd (linreg *, size_t);
-void linreg_set_indep_variable_sd (linreg *, size_t, double);
 /*
   Mean of the independent variable.
  */