I just split the program up into a bunch of files.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%404107

tools/mltool/CMakeLists.txt

@@ -15,6 +15,11 @@ PROJECT(${target_name})
 # cmake that they are part of our target (which is the exectuable named mltool)
 ADD_EXECUTABLE(${target_name} 
    src/main.cpp
+   src/regression.cpp
+   src/regression.h
+   src/common.h
+   src/option_range.h
+   src/option_range.cpp
 )
 
 

tools/mltool/src/common.h

+// The contents of this file are in the public domain. 
+// See LICENSE_FOR_EXAMPLE_PROGRAMS.txt (in trunk/examples)
+// Authors:
+//   Gregory Sharp
+//   Davis King
+
+
+#ifndef DLIB_MLTOOL_COMMoN_H__
+
+#include "dlib/cmd_line_parser.h"
+#include <map>
+#include "dlib/matrix.h"
+
+
+typedef dlib::cmd_line_parser<char>::check_1a_c clp;
+
+typedef std::map<unsigned long, double> sparse_sample_type;
+typedef dlib::matrix<sparse_sample_type::value_type::second_type,0,1> dense_sample_type;
+
+
+
+#endif // DLIB_MLTOOL_COMMoN_H__
+

tools/mltool/src/option_range.cpp

+// The contents of this file are in the public domain. 
+// See LICENSE_FOR_EXAMPLE_PROGRAMS.txt (in trunk/examples)
+// Authors:
+//   Gregory Sharp
+//   Davis King
+
+
+#include "option_range.h"
+#include <iostream>
+
+// ----------------------------------------------------------------------------------------
+
+/* exp10() is not in C/C++ standard */
+double
+exp10_ (double m)
+{
+    return exp (2.3025850929940456840179914546844 * m);
+}
+
+// ----------------------------------------------------------------------------------------
+
+void
+option_range::set_option (
+    clp& parser,
+    std::string const& option, 
+    float default_val
+)
+{
+    int rc;
+
+    /* No option specified */
+    if (!parser.option (option)) {
+        log_range = 0;
+        min_value = default_val;
+        max_value = default_val;
+        incr = 1;
+        return;
+    }
+
+    /* Range specified */
+    rc = sscanf (parser.option(option).argument().c_str(), "%f:%f:%f", 
+                 &min_value, &incr, &max_value);
+    if (rc == 3) {
+        log_range = 1;
+        return;
+    }
+
+    /* Single value specified */
+    if (rc == 1) {
+        log_range = 0;
+        max_value = min_value;
+        incr = 1;
+        return;
+    }
+
+    else {
+        std::cerr << "Error parsing option" << option << "\n";
+        exit (-1);
+    }
+}
+
+// ----------------------------------------------------------------------------------------
+
+float 
+option_range::get_min_value ()
+{
+    if (log_range) {
+        return exp10_ (min_value);
+    } else {
+        return min_value;
+    }
+}
+
+// ----------------------------------------------------------------------------------------
+
+float 
+option_range::get_max_value ()
+{
+    if (log_range) {
+        return exp10_ (max_value);
+    } else {
+        return max_value;
+    }
+}
+
+// ----------------------------------------------------------------------------------------
+
+float 
+option_range::get_next_value (float curr_value)
+{
+    if (log_range) {
+        curr_value = log10 (curr_value);
+        curr_value += incr;
+        curr_value = exp10_ (curr_value);
+    } else {
+        curr_value += incr;
+    }
+    return curr_value;
+}
+
+// ----------------------------------------------------------------------------------------
+

tools/mltool/src/option_range.h

+// The contents of this file are in the public domain. 
+// See LICENSE_FOR_EXAMPLE_PROGRAMS.txt (in trunk/examples)
+// Authors:
+//   Gregory Sharp
+//   Davis King
+
+#ifndef DLIB_MLTOOL_OPTION_RaNGE_H__
+#define DLIB_MLTOOL_OPTION_RaNGE_H__
+
+#include "common.h"
+#include <string>
+
+// ----------------------------------------------------------------------------------------
+
+struct option_range 
+{
+    /*!
+        WHAT THIS OBJECT REPRESENTS
+            This object is a tool for representing a range of possible parameter values.
+            The range is determined based on the contents of the command line.
+    !*/
+
+public:
+    bool log_range;
+    float min_value;
+    float max_value;
+    float incr;
+public:
+    option_range () {
+        log_range = false;
+        min_value = 0;
+        max_value = 100;
+        incr = 10;
+    }
+    void set_option (clp& parser, std::string const& option, 
+                     float default_val);
+    float get_min_value ();
+    float get_max_value ();
+    float get_next_value (float curr_val);
+};
+
+// ----------------------------------------------------------------------------------------
+
+#endif // DLIB_MLTOOL_OPTION_RaNGE_H__
+

tools/mltool/src/regression.h

+// The contents of this file are in the public domain. 
+// See LICENSE_FOR_EXAMPLE_PROGRAMS.txt (in trunk/examples)
+// Authors:
+//   Gregory Sharp
+//   Davis King
+
+#ifndef DLIB_MLTOOL_REGREsSION_H__
+#define DLIB_MLTOOL_REGREsSION_H__
+
+#include "common.h"
+#include <vector>
+
+void
+krr_test (
+    clp& parser,
+    std::vector<dense_sample_type>& dense_samples,
+    std::vector<double>& labels
+);
+
+void
+krls_test (
+    clp& parser,
+    std::vector<dense_sample_type>& dense_samples,
+    std::vector<double>& labels
+);
+
+void
+mlp_test (
+    clp& parser,
+    std::vector<dense_sample_type>& dense_samples,
+    std::vector<double>& labels
+);
+
+void
+svr_test (
+    clp& parser,
+    std::vector<dense_sample_type>& dense_samples,
+    std::vector<double>& labels
+);
+
+#endif // DLIB_MLTOOL_REGREsSION_H__
+