added a test for multiclass serialization

examples/undocumented/libshogun/serialization_multiclass_labels.cpp

@@ -0,0 +1,73 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Written (W) 2013 Heiko Strathmann
+ */
+#include <shogun/labels/MulticlassLabels.h>
+#include <shogun/io/SerializableAsciiFile.h>
+
+using namespace shogun;
+
+void test()
+{
+	index_t n=10;
+	index_t n_class=3;
+
+	CMulticlassLabels* labels=new CMulticlassLabels();
+
+	SGVector<float64_t> lab(n);
+	for (index_t i=0; i<n; ++i)
+		lab[i]=i%n_class;
+
+	labels->set_labels(lab);
+
+	labels->allocate_confidences_for(n_class);
+	SGVector<float64_t> conf(n_class);
+	for (index_t i=0; i<n_class; ++i)
+		conf[i]=CMath::randn_double();
+
+	for (index_t i=0; i<n; ++i)
+		labels->set_multiclass_confidences(i, conf);
+
+	/* create serialized copy */
+	const char* filename="multiclass_labels.txt";
+	CSerializableAsciiFile* file=new CSerializableAsciiFile(filename, 'w');
+	labels->save_serializable(file);
+	file->close();
+	SG_UNREF(file);
+
+	file=new CSerializableAsciiFile(filename, 'r');
+	CMulticlassLabels* labels_loaded=new CMulticlassLabels();
+	labels_loaded->load_serializable(file);
+	file->close();
+	SG_UNREF(file);
+
+	/* compare */
+	labels->get_labels().display_vector("labels");
+	labels_loaded->get_labels().display_vector("labels_loaded");
+
+	for (index_t i=0; i<n_class; ++i)
+	{
+		labels->get_multiclass_confidences(i).display_vector("confidences");
+		labels_loaded->get_multiclass_confidences(i).display_vector("confidences_loaded");
+	}
+
+	SG_UNREF(labels_loaded);
+	SG_UNREF(labels);
+}
+
+int main()
+{
+	init_shogun_with_defaults();
+
+//	sg_io->set_loglevel(MSG_DEBUG);
+
+	test();
+
+	exit_shogun();
+	return 0;
+}
+