glm.q: Removed code to us QR decomposition, which requires the entire data

[pspp-builds.git] / src / math / design-matrix.h

diff --git a/src/math/design-matrix.h b/src/math/design-matrix.h
index 8d56d010c5974f0ebf558dc3d12989f96e96f093..01026a22f57216f34b19adb716f954230673cf69 100644 (file)
--- a/src/math/design-matrix.h
+++ b/src/math/design-matrix.h
@@ -58,6 +58,9 @@ struct design_matrix
                                           design_matrix_var
                                           structure.
                                         */
+  size_t *n_cases; /* Element i is the number of valid cases for this
+                     variable.
+                   */
   size_t n_vars;
 };
 
@@ -82,5 +85,9 @@ size_t design_matrix_var_to_column (const struct design_matrix *,
 
 const struct variable *design_matrix_col_to_var (const struct design_matrix *,
                                           size_t);
+void design_matrix_increment_case_count (struct design_matrix *, const struct variable *);
 
+void design_matrix_set_case_count (struct design_matrix *, const struct variable *, size_t);
+
+void design_matrix_get_case_count (struct design_matrix *, const struct variable *);
 #endif