X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fstats%2Fglm.c;h=fd5870c137d95f1d72aee239136ff497206abf76;hb=ce4f35416abc94c3c4d39312da42b9fff0788073;hp=2536c5f52de069c9e326f3891e18600d61394c1e;hpb=be3a7bd753e0582a6b7bbdc032bc0891ab2900d6;p=pspp-builds.git

diff --git a/src/language/stats/glm.c b/src/language/stats/glm.c
index 2536c5f5..fd5870c1 100644
--- a/src/language/stats/glm.c
+++ b/src/language/stats/glm.c
@@ -68,6 +68,8 @@ struct glm_spec
   bool intercept;
 
   double alpha;
+
+  bool dump_coding;
 };
 
 struct glm_workspace
@@ -143,6 +145,7 @@ cmd_glm (struct lexer *lexer, struct dataset *ds)
   glm.intercept = true;
   glm.wv = dict_get_weight (glm.dict);
   glm.alpha = 0.05;
+  glm.dump_coding = false;
 
   if (!parse_variables_const (lexer, glm.dict,
 			      &glm.dep_vars, &glm.n_dep_vars,
@@ -284,6 +287,13 @@ cmd_glm (struct lexer *lexer, struct dataset *ds)
 	  if (glm.n_interactions > 0)
 	    design = true;
 	}
+      else if (lex_match_id (lexer, "SHOWCODES"))
+	/* Undocumented debug option */
+	{
+	  lex_match (lexer, T_EQUALS);
+
+	  glm.dump_coding = true;
+	}
       else
 	{
 	  lex_error (lexer, NULL);
@@ -478,7 +488,12 @@ run_glm (struct glm_spec *cmd, struct casereader *input,
     }
   casereader_destroy (reader);
 
-  for (reader = input;
+  if (cmd->dump_coding)
+    reader = casereader_clone (input);
+  else
+    reader = input;
+
+  for (;
        (c = casereader_read (reader)) != NULL; case_unref (c))
     {
       double weight = dict_get_case_weight (dict, c, &warn_bad_weight);
@@ -491,6 +506,21 @@ run_glm (struct glm_spec *cmd, struct casereader *input,
     }
   casereader_destroy (reader);
 
+
+  if (cmd->dump_coding)
+    {
+      struct tab_table *t =
+	covariance_dump_enc_header (cov,
+				    1 + casereader_count_cases (input));
+      for (reader = input;
+	   (c = casereader_read (reader)) != NULL; case_unref (c))
+	{
+	  covariance_dump_enc (cov, c, t);
+	}
+      casereader_destroy (reader);
+      tab_submit (t);
+    }
+
   {
     gsl_matrix *cm = covariance_calculate_unnormalized (cov);