X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Fdesign-matrix.c;h=b81859aa5a539099f6e7a437ab053f31ce5fa202;hb=537fdeb3702c011e05d7826a8d556a7beeba2605;hp=df68287b36e04e8077db317fa780cfeb648553b5;hpb=8af88c0b7ea2fe75df7e45497988ed0371006a86;p=pspp-builds.git

diff --git a/src/math/design-matrix.c b/src/math/design-matrix.c
index df68287b..b81859aa 100644
--- a/src/math/design-matrix.c
+++ b/src/math/design-matrix.c
@@ -258,4 +258,26 @@ design_matrix_get_case_count (const struct design_matrix *dm, const struct varia
   return dm->n_cases[i];
 }
 
-  
+size_t
+design_matrix_get_n_cols (const struct design_matrix *d)
+{
+  return d->m->size2;
+}
+
+size_t
+design_matrix_get_n_rows (const struct design_matrix *d)
+{
+  return d->m->size1;
+}
+
+double
+design_matrix_get_element (const struct design_matrix *d, size_t row, size_t col)
+{
+  return (gsl_matrix_get (d->m, row, col));
+}
+
+void
+design_matrix_set_element (const struct design_matrix *d, size_t row, size_t col, double x)
+{
+  gsl_matrix_set (d->m, row, col, x);
+}