Changeset 2411

Timestamp:

10/06/09 09:40:25 (15 years ago)

Author:

gkronber

Message:

Implemented #772 (Text export of SVM models)

Location:

trunk/sources

Files:

• HeuristicLab.SupportVectorMachines/3.2/PredictorView.Designer.cs (modified) (2 diffs)
• HeuristicLab.SupportVectorMachines/3.2/SVMModelView.Designer.cs (modified) (4 diffs)
• HeuristicLab.SupportVectorMachines/3.2/SVMModelView.cs (modified) (2 diffs)
• LibSVM/Model.cs (modified) (1 diff)

trunk/sources/HeuristicLab.SupportVectorMachines/3.2/PredictorView.Designer.cs

@@ -54 +54 @@
       this.minTimeOffsetLabel = new System.Windows.Forms.Label();
       this.SuspendLayout();
+      // 
+      // textBox
+      // 
+      this.textBox.Location = new System.Drawing.Point(0, 238);
+      this.textBox.Size = new System.Drawing.Size(324, 130);
       // 
       // lowerPredictionLimit
@@ -136 +141 @@
       this.Controls.Add(this.lowerPredictionLimit);
       this.Name = "PredictorView";
-      this.Size = new System.Drawing.Size(252, 240);
+      this.Size = new System.Drawing.Size(324, 371);
+      this.Controls.SetChildIndex(this.textBox, 0);
       this.Controls.SetChildIndex(this.lowerPredictionLimit, 0);
       this.Controls.SetChildIndex(this.lowerLimitTextbox, 0);

trunk/sources/HeuristicLab.SupportVectorMachines/3.2/SVMModelView.Designer.cs

@@ -55 +55 @@
       this.kernelType = new System.Windows.Forms.TextBox();
       this.gamma = new System.Windows.Forms.TextBox();
+      this.textBox = new System.Windows.Forms.TextBox();
       this.SuspendLayout();
       // 
@@ -142 +143 @@
       this.gamma.TabIndex = 12;
       // 
+      // textBox
+      // 
+      this.textBox.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
+                  | System.Windows.Forms.AnchorStyles.Left)
+                  | System.Windows.Forms.AnchorStyles.Right)));
+      this.textBox.Location = new System.Drawing.Point(0, 134);
+      this.textBox.Multiline = true;
+      this.textBox.Name = "textBox";
+      this.textBox.ReadOnly = true;
+      this.textBox.ScrollBars = System.Windows.Forms.ScrollBars.Both;
+      this.textBox.Size = new System.Drawing.Size(283, 171);
+      this.textBox.TabIndex = 13;
+      this.textBox.WordWrap = false;
+      // 
       // SVMModelView
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+      this.Controls.Add(this.textBox);
       this.Controls.Add(this.gamma);
       this.Controls.Add(this.kernelType);
@@ -157 +173 @@
       this.Controls.Add(this.numberSupportVectorsLabel);
       this.Name = "SVMModelView";
-      this.Size = new System.Drawing.Size(253, 135);
+      this.Size = new System.Drawing.Size(283, 308);
       this.ResumeLayout(false);
       this.PerformLayout();
@@ -175 +191 @@
     private System.Windows.Forms.TextBox kernelType;
     private System.Windows.Forms.TextBox gamma;
+    protected System.Windows.Forms.TextBox textBox;
   }
 }

trunk/sources/HeuristicLab.SupportVectorMachines/3.2/SVMModelView.cs

@@ -29 +29 @@
 using System.Windows.Forms;
 using HeuristicLab.Core;
+using System.IO;
 
 namespace HeuristicLab.SupportVectorMachines {
   public partial class SVMModelView : ViewBase {
     private SVMModel model;
-    public SVMModelView() : base() {
+    public SVMModelView()
+      : base() {
       InitializeComponent();
-    }    
-    public SVMModelView(SVMModel model) : base() {
+    }
+    public SVMModelView(SVMModel model)
+      : base() {
       InitializeComponent();
       this.model = model;
@@ -46 +49 @@
       kernelType.DataBindings.Add(new Binding("Text", model.Model.Parameter, "KernelType"));
       gamma.DataBindings.Add(new Binding("Text", model.Model.Parameter, "Gamma"));
+      StringBuilder builder = new StringBuilder();
+      builder.AppendLine("RangeTransform:");
+      using (MemoryStream stream = new MemoryStream()) {
+        SVM.RangeTransform.Write(stream, model.RangeTransform);
+        stream.Seek(0, System.IO.SeekOrigin.Begin);
+        StreamReader reader = new StreamReader(stream);
+        builder.AppendLine(reader.ReadToEnd());
+      }
+      builder.AppendLine("Model:");
+      using (MemoryStream stream = new MemoryStream()) {
+        SVM.Model.Write(stream, model.Model);
+        stream.Seek(0, System.IO.SeekOrigin.Begin);
+        StreamReader reader = new StreamReader(stream);
+        builder.AppendLine(reader.ReadToEnd());
+      }
+
+      textBox.Text = builder.ToString();
     }
   }

trunk/sources/LibSVM/Model.cs

@@ -22 +22 @@
 using System.IO;
 
-namespace SVM
-{
-    /// <remarks>
-    /// Encapsulates an SVM Model.
-    /// </remarks>
-  [Serializable]
-  public class Model
-  {
-        private Parameter _parameter;
-        private int _numberOfClasses;
-        private int _supportVectorCount;
-        private Node[][] _supportVectors;
-        private double[][] _supportVectorCoefficients;
-        private double[] _rho;
-        private double[] _pairwiseProbabilityA;
-        private double[] _pairwiseProbabilityB;
-
-        private int[] _classLabels;
-        private int[] _numberOfSVPerClass;
-
-        internal Model()
-        {
+namespace SVM {
+  /// <remarks>
+  /// Encapsulates an SVM Model.
+  /// </remarks>
+  [Serializable]
+  public class Model {
+    private Parameter _parameter;
+    private int _numberOfClasses;
+    private int _supportVectorCount;
+    private Node[][] _supportVectors;
+    private double[][] _supportVectorCoefficients;
+    private double[] _rho;
+    private double[] _pairwiseProbabilityA;
+    private double[] _pairwiseProbabilityB;
+
+    private int[] _classLabels;
+    private int[] _numberOfSVPerClass;
+
+    internal Model() {
+    }
+
+    /// <summary>
+    /// Parameter object.
+    /// </summary>
+    public Parameter Parameter {
+      get {
+        return _parameter;
+      }
+      set {
+        _parameter = value;
+      }
+    }
+
+    /// <summary>
+    /// Number of classes in the model.
+    /// </summary>
+    public int NumberOfClasses {
+      get {
+        return _numberOfClasses;
+      }
+      set {
+        _numberOfClasses = value;
+      }
+    }
+
+    /// <summary>
+    /// Total number of support vectors.
+    /// </summary>
+    public int SupportVectorCount {
+      get {
+        return _supportVectorCount;
+      }
+      set {
+        _supportVectorCount = value;
+      }
+    }
+
+    /// <summary>
+    /// The support vectors.
+    /// </summary>
+    public Node[][] SupportVectors {
+      get {
+        return _supportVectors;
+      }
+      set {
+        _supportVectors = value;
+      }
+    }
+
+    /// <summary>
+    /// The coefficients for the support vectors.
+    /// </summary>
+    public double[][] SupportVectorCoefficients {
+      get {
+        return _supportVectorCoefficients;
+      }
+      set {
+        _supportVectorCoefficients = value;
+      }
+    }
+
+    /// <summary>
+    /// Rho values.
+    /// </summary>
+    public double[] Rho {
+      get {
+        return _rho;
+      }
+      set {
+        _rho = value;
+      }
+    }
+
+    /// <summary>
+    /// First pairwise probability.
+    /// </summary>
+    public double[] PairwiseProbabilityA {
+      get {
+        return _pairwiseProbabilityA;
+      }
+      set {
+        _pairwiseProbabilityA = value;
+      }
+    }
+
+    /// <summary>
+    /// Second pairwise probability.
+    /// </summary>
+    public double[] PairwiseProbabilityB {
+      get {
+        return _pairwiseProbabilityB;
+      }
+      set {
+        _pairwiseProbabilityB = value;
+      }
+    }
+
+    // for classification only
+
+    /// <summary>
+    /// Class labels.
+    /// </summary>
+    public int[] ClassLabels {
+      get {
+        return _classLabels;
+      }
+      set {
+        _classLabels = value;
+      }
+    }
+
+    /// <summary>
+    /// Number of support vectors per class.
+    /// </summary>
+    public int[] NumberOfSVPerClass {
+      get {
+        return _numberOfSVPerClass;
+      }
+      set {
+        _numberOfSVPerClass = value;
+      }
+    }
+
+    /// <summary>
+    /// Reads a Model from the provided file.
+    /// </summary>
+    /// <param name="filename">The name of the file containing the Model</param>
+    /// <returns>the Model</returns>
+    public static Model Read(string filename) {
+      FileStream input = File.OpenRead(filename);
+      try {
+        return Read(input);
+      }
+      finally {
+        input.Close();
+      }
+    }
+
+    /// <summary>
+    /// Reads a Model from the provided stream.
+    /// </summary>
+    /// <param name="stream">The stream from which to read the Model.</param>
+    /// <returns>the Model</returns>
+    public static Model Read(Stream stream) {
+      StreamReader input = new StreamReader(stream);
+
+      // read parameters
+
+      Model model = new Model();
+      Parameter param = new Parameter();
+      model.Parameter = param;
+      model.Rho = null;
+      model.PairwiseProbabilityA = null;
+      model.PairwiseProbabilityB = null;
+      model.ClassLabels = null;
+      model.NumberOfSVPerClass = null;
+
+      bool headerFinished = false;
+      while (!headerFinished) {
+        string line = input.ReadLine();
+        string cmd, arg;
+        int splitIndex = line.IndexOf(' ');
+        if (splitIndex >= 0) {
+          cmd = line.Substring(0, splitIndex);
+          arg = line.Substring(splitIndex + 1);
+        } else {
+          cmd = line;
+          arg = "";
         }
-
-        /// <summary>
-        /// Parameter object.
-        /// </summary>
-        public Parameter Parameter
-        {
-            get
+        arg = arg.ToLower();
+
+        int i, n;
+        switch (cmd) {
+          case "svm_type":
+            param.SvmType = (SvmType)Enum.Parse(typeof(SvmType), arg.ToUpper());
+            break;
+
+          case "kernel_type":
+            param.KernelType = (KernelType)Enum.Parse(typeof(KernelType), arg.ToUpper());
+            break;
+
+          case "degree":
+            param.Degree = int.Parse(arg);
+            break;
+
+          case "gamma":
+            param.Gamma = double.Parse(arg);
+            break;
+
+          case "coef0":
+            param.Coefficient0 = double.Parse(arg);
+            break;
+
+          case "nr_class":
+            model.NumberOfClasses = int.Parse(arg);
+            break;
+
+          case "total_sv":
+            model.SupportVectorCount = int.Parse(arg);
+            break;
+
+          case "rho":
+            n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
+            model.Rho = new double[n];
+            string[] rhoParts = arg.Split();
+            for (i = 0; i < n; i++)
+              model.Rho[i] = double.Parse(rhoParts[i]);
+            break;
+
+          case "label":
+            n = model.NumberOfClasses;
+            model.ClassLabels = new int[n];
+            string[] labelParts = arg.Split();
+            for (i = 0; i < n; i++)
+              model.ClassLabels[i] = int.Parse(labelParts[i]);
+            break;
+
+          case "probA":
+            n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
+            model.PairwiseProbabilityA = new double[n];
+            string[] probAParts = arg.Split();
+            for (i = 0; i < n; i++)
+              model.PairwiseProbabilityA[i] = double.Parse(probAParts[i]);
+            break;
+
+          case "probB":
+            n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
+            model.PairwiseProbabilityB = new double[n];
+            string[] probBParts = arg.Split();
+            for (i = 0; i < n; i++)
+              model.PairwiseProbabilityB[i] = double.Parse(probBParts[i]);
+            break;
+
+          case "nr_sv":
+            n = model.NumberOfClasses;
+            model.NumberOfSVPerClass = new int[n];
+            string[] nrsvParts = arg.Split();
+            for (i = 0; i < n; i++)
+              model.NumberOfSVPerClass[i] = int.Parse(nrsvParts[i]);
+            break;
+
+          case "SV":
+            headerFinished = true;
+            break;
+
+          default:
+            throw new Exception("Unknown text in model file");
+        }
+      }
+
+      // read sv_coef and SV
+
+      int m = model.NumberOfClasses - 1;
+      int l = model.SupportVectorCount;
+      model.SupportVectorCoefficients = new double[m][];
+      for (int i = 0; i < m; i++) {
+        model.SupportVectorCoefficients[i] = new double[l];
+      }
+      model.SupportVectors = new Node[l][];
+
+      for (int i = 0; i < l; i++) {
+        string[] parts = input.ReadLine().Trim().Split();
+
+        for (int k = 0; k < m; k++)
+          model.SupportVectorCoefficients[k][i] = double.Parse(parts[k]);
+        int n = parts.Length - m;
+        model.SupportVectors[i] = new Node[n];
+        for (int j = 0; j < n; j++) {
+          string[] nodeParts = parts[m + j].Split(':');
+          model.SupportVectors[i][j] = new Node();
+          model.SupportVectors[i][j].Index = int.Parse(nodeParts[0]);
+          model.SupportVectors[i][j].Value = double.Parse(nodeParts[1]);
+        }
+      }
+
+      return model;
+    }
+
+    /// <summary>
+    /// Writes a model to the provided filename.  This will overwrite any previous data in the file.
+    /// </summary>
+    /// <param name="filename">The desired file</param>
+    /// <param name="model">The Model to write</param>
+    public static void Write(string filename, Model model) {
+      FileStream stream = File.Open(filename, FileMode.Create);
+      try {
+        Write(stream, model);
+      }
+      finally {
+        stream.Close();
+      }
+    }
+
+    /// <summary>
+    /// Writes a model to the provided stream.
+    /// </summary>
+    /// <param name="stream">The output stream</param>
+    /// <param name="model">The model to write</param>
+    public static void Write(Stream stream, Model model) {
+      StreamWriter output = new StreamWriter(stream);
+
+      Parameter param = model.Parameter;
+
+      output.Write("svm_type " + param.SvmType + Environment.NewLine);
+      output.Write("kernel_type " + param.KernelType + Environment.NewLine);
+
+      if (param.KernelType == KernelType.POLY)
+        output.Write("degree " + param.Degree + Environment.NewLine);
+
+      if (param.KernelType == KernelType.POLY || param.KernelType == KernelType.RBF || param.KernelType == KernelType.SIGMOID)
+        output.Write("gamma " + param.Gamma + Environment.NewLine);
+
+      if (param.KernelType == KernelType.POLY || param.KernelType == KernelType.SIGMOID)
+        output.Write("coef0 " + param.Coefficient0 + Environment.NewLine);
+
+      int nr_class = model.NumberOfClasses;
+      int l = model.SupportVectorCount;
+      output.Write("nr_class " + nr_class + Environment.NewLine);
+      output.Write("total_sv " + l + Environment.NewLine);
+
+      {
+        output.Write("rho");
+        for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
+          output.Write(" " + model.Rho[i]);
+        output.Write(Environment.NewLine);
+      }
+
+      if (model.ClassLabels != null) {
+        output.Write("label");
+        for (int i = 0; i < nr_class; i++)
+          output.Write(" " + model.ClassLabels[i]);
+        output.Write(Environment.NewLine);
+      }
+
+      if (model.PairwiseProbabilityA != null)
+      // regression has probA only
             {
-                return _parameter;
-            }
-            set
-            {
-                _parameter = value;
-            }
+        output.Write("probA");
+        for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
+          output.Write(" " + model.PairwiseProbabilityA[i]);
+        output.Write(Environment.NewLine);
+      }
+      if (model.PairwiseProbabilityB != null) {
+        output.Write("probB");
+        for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
+          output.Write(" " + model.PairwiseProbabilityB[i]);
+        output.Write(Environment.NewLine);
+      }
+
+      if (model.NumberOfSVPerClass != null) {
+        output.Write("nr_sv");
+        for (int i = 0; i < nr_class; i++)
+          output.Write(" " + model.NumberOfSVPerClass[i]);
+        output.Write(Environment.NewLine);
+      }
+
+      output.Write("SV\n");
+      double[][] sv_coef = model.SupportVectorCoefficients;
+      Node[][] SV = model.SupportVectors;
+
+      for (int i = 0; i < l; i++) {
+        for (int j = 0; j < nr_class - 1; j++)
+          output.Write(sv_coef[j][i] + " ");
+
+        Node[] p = SV[i];
+        if (p.Length == 0) {
+          output.WriteLine();
+          continue;
         }
-
-        /// <summary>
-        /// Number of classes in the model.
-        /// </summary>
-        public int NumberOfClasses
-        {
-            get
-            {
-                return _numberOfClasses;
-            }
-            set
-            {
-                _numberOfClasses = value;
-            }
+        if (param.KernelType == KernelType.PRECOMPUTED)
+          output.Write("0:{0}", (int)p[0].Value);
+        else {
+          output.Write("{0}:{1}", p[0].Index, p[0].Value);
+          for (int j = 1; j < p.Length; j++)
+            output.Write(" {0}:{1}", p[j].Index, p[j].Value);
         }
-
-        /// <summary>
-        /// Total number of support vectors.
-        /// </summary>
-        public int SupportVectorCount
-        {
-            get
-            {
-                return _supportVectorCount;
-            }
-            set
-            {
-                _supportVectorCount = value;
-            }
-        }
-
-        /// <summary>
-        /// The support vectors.
-        /// </summary>
-        public Node[][] SupportVectors
-        {
-            get
-            {
-                return _supportVectors;
-            }
-            set
-            {
-                _supportVectors = value;
-            }
-        }
-
-        /// <summary>
-        /// The coefficients for the support vectors.
-        /// </summary>
-        public double[][] SupportVectorCoefficients
-        {
-            get
-            {
-                return _supportVectorCoefficients;
-            }
-            set
-            {
-                _supportVectorCoefficients = value;
-            }
-        }
-
-        /// <summary>
-        /// Rho values.
-        /// </summary>
-        public double[] Rho
-        {
-            get
-            {
-                return _rho;
-            }
-            set
-            {
-                _rho = value;
-            }
-        }
-
-        /// <summary>
-        /// First pairwise probability.
-        /// </summary>
-        public double[] PairwiseProbabilityA
-        {
-            get
-            {
-                return _pairwiseProbabilityA;
-            }
-            set
-            {
-                _pairwiseProbabilityA = value;
-            }
-        }
-
-        /// <summary>
-        /// Second pairwise probability.
-        /// </summary>
-        public double[] PairwiseProbabilityB
-        {
-            get
-            {
-                return _pairwiseProbabilityB;
-            }
-            set
-            {
-                _pairwiseProbabilityB = value;
-            }
-        }
-    
-    // for classification only
-
-        /// <summary>
-        /// Class labels.
-        /// </summary>
-        public int[] ClassLabels
-        {
-            get
-            {
-                return _classLabels;
-            }
-            set
-            {
-                _classLabels = value;
-            }
-        }
-
-        /// <summary>
-        /// Number of support vectors per class.
-        /// </summary>
-        public int[] NumberOfSVPerClass
-        {
-            get
-            {
-                return _numberOfSVPerClass;
-            }
-            set
-            {
-                _numberOfSVPerClass = value;
-            }
-        }
-
-        /// <summary>
-        /// Reads a Model from the provided file.
-        /// </summary>
-        /// <param name="filename">The name of the file containing the Model</param>
-        /// <returns>the Model</returns>
-        public static Model Read(string filename)
-        {
-            FileStream input = File.OpenRead(filename);
-            try
-            {
-                return Read(input);
-            }
-            finally
-            {
-                input.Close();
-            }
-        }
-
-        /// <summary>
-        /// Reads a Model from the provided stream.
-        /// </summary>
-        /// <param name="stream">The stream from which to read the Model.</param>
-        /// <returns>the Model</returns>
-        public static Model Read(Stream stream)
-        {
-            StreamReader input = new StreamReader(stream);
-
-            // read parameters
-
-            Model model = new Model();
-            Parameter param = new Parameter();
-            model.Parameter = param;
-            model.Rho = null;
-            model.PairwiseProbabilityA = null;
-            model.PairwiseProbabilityB = null;
-            model.ClassLabels = null;
-            model.NumberOfSVPerClass = null;
-
-            bool headerFinished = false;
-            while (!headerFinished)
-            {
-                string line = input.ReadLine();
-                string cmd, arg;
-                int splitIndex = line.IndexOf(' ');
-                if (splitIndex >= 0)
-                {
-                    cmd = line.Substring(0, splitIndex);
-                    arg = line.Substring(splitIndex + 1);
-                }
-                else
-                {
-                    cmd = line;
-                    arg = "";
-                }
-                arg = arg.ToLower();
-
-                int i,n;
-                switch(cmd){
-                    case "svm_type":
-                        param.SvmType = (SvmType)Enum.Parse(typeof(SvmType), arg.ToUpper());
-                        break;
-                        
-                    case "kernel_type":
-                        param.KernelType = (KernelType)Enum.Parse(typeof(KernelType), arg.ToUpper());
-                        break;
-
-                    case "degree":
-                        param.Degree = int.Parse(arg);
-                        break;
-
-                    case "gamma":
-                        param.Gamma = double.Parse(arg);
-                        break;
-
-                    case "coef0":
-                        param.Coefficient0 = double.Parse(arg);
-                        break;
-
-                    case "nr_class":
-                        model.NumberOfClasses = int.Parse(arg);
-                        break;
-
-                    case "total_sv":
-                        model.SupportVectorCount = int.Parse(arg);
-                        break;
-
-                    case "rho":
-                        n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
-                        model.Rho = new double[n];
-                        string[] rhoParts = arg.Split();
-                        for(i=0; i<n; i++)
-                            model.Rho[i] = double.Parse(rhoParts[i]);
-                        break;
-
-                    case "label":
-                        n = model.NumberOfClasses;
-                        model.ClassLabels = new int[n];
-                        string[] labelParts = arg.Split();
-                        for (i = 0; i < n; i++)
-                            model.ClassLabels[i] = int.Parse(labelParts[i]);
-                        break;
-
-                    case "probA":
-                        n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
-                        model.PairwiseProbabilityA = new double[n];
-                            string[] probAParts = arg.Split();
-                        for (i = 0; i < n; i++)
-                            model.PairwiseProbabilityA[i] = double.Parse(probAParts[i]);
-                        break;
-
-                    case "probB":
-                        n = model.NumberOfClasses * (model.NumberOfClasses - 1) / 2;
-                        model.PairwiseProbabilityB = new double[n];
-                        string[] probBParts = arg.Split();
-                        for (i = 0; i < n; i++)
-                            model.PairwiseProbabilityB[i] = double.Parse(probBParts[i]);
-                        break;
-
-                    case "nr_sv":
-                        n = model.NumberOfClasses;
-                        model.NumberOfSVPerClass = new int[n];
-                        string[] nrsvParts = arg.Split();
-                        for (i = 0; i < n; i++)
-                            model.NumberOfSVPerClass[i] = int.Parse(nrsvParts[i]);
-                        break;
-
-                    case "SV":
-                        headerFinished = true;
-                        break;
-
-                    default:
-                        throw new Exception("Unknown text in model file");  
-                }
-            }
-
-            // read sv_coef and SV
-
-            int m = model.NumberOfClasses - 1;
-            int l = model.SupportVectorCount;
-            model.SupportVectorCoefficients = new double[m][];
-            for (int i = 0; i < m; i++)
-            {
-                model.SupportVectorCoefficients[i] = new double[l];
-            }
-            model.SupportVectors = new Node[l][];
-
-            for (int i = 0; i < l; i++)
-            {
-                string[] parts = input.ReadLine().Trim().Split();
-
-                for (int k = 0; k < m; k++)
-                    model.SupportVectorCoefficients[k][i] = double.Parse(parts[k]);
-                int n = parts.Length-m;
-                model.SupportVectors[i] = new Node[n];
-                for (int j = 0; j < n; j++)
-                {
-                    string[] nodeParts = parts[m + j].Split(':');
-                    model.SupportVectors[i][j] = new Node();
-                    model.SupportVectors[i][j].Index = int.Parse(nodeParts[0]);
-                    model.SupportVectors[i][j].Value = double.Parse(nodeParts[1]);
-                }
-            }
-
-            return model;
-        }
-
-        /// <summary>
-        /// Writes a model to the provided filename.  This will overwrite any previous data in the file.
-        /// </summary>
-        /// <param name="filename">The desired file</param>
-        /// <param name="model">The Model to write</param>
-        public static void Write(string filename, Model model)
-        {
-            FileStream stream = File.Open(filename, FileMode.Create);
-            try
-            {
-                Write(stream, model);
-            }
-            finally
-            {
-                stream.Close();
-            }
-        }
-
-        /// <summary>
-        /// Writes a model to the provided stream.
-        /// </summary>
-        /// <param name="stream">The output stream</param>
-        /// <param name="model">The model to write</param>
-        public static void Write(Stream stream, Model model)
-        {
-            StreamWriter output = new StreamWriter(stream);
-
-            Parameter param = model.Parameter;
-
-            output.Write("svm_type " + param.SvmType + "\n");
-            output.Write("kernel_type " + param.KernelType + "\n");
-
-            if (param.KernelType == KernelType.POLY)
-                output.Write("degree " + param.Degree + "\n");
-
-            if (param.KernelType == KernelType.POLY || param.KernelType == KernelType.RBF || param.KernelType == KernelType.SIGMOID)
-                output.Write("gamma " + param.Gamma + "\n");
-
-            if (param.KernelType == KernelType.POLY || param.KernelType == KernelType.SIGMOID)
-                output.Write("coef0 " + param.Coefficient0 + "\n");
-
-            int nr_class = model.NumberOfClasses;
-            int l = model.SupportVectorCount;
-            output.Write("nr_class " + nr_class + "\n");
-            output.Write("total_sv " + l + "\n");
-
-            {
-                output.Write("rho");
-                for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
-                    output.Write(" " + model.Rho[i]);
-                output.Write("\n");
-            }
-
-            if (model.ClassLabels != null)
-            {
-                output.Write("label");
-                for (int i = 0; i < nr_class; i++)
-                    output.Write(" " + model.ClassLabels[i]);
-                output.Write("\n");
-            }
-
-            if (model.PairwiseProbabilityA != null)
-            // regression has probA only
-            {
-                output.Write("probA");
-                for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
-                    output.Write(" " + model.PairwiseProbabilityA[i]);
-                output.Write("\n");
-            }
-            if (model.PairwiseProbabilityB != null)
-            {
-                output.Write("probB");
-                for (int i = 0; i < nr_class * (nr_class - 1) / 2; i++)
-                    output.Write(" " + model.PairwiseProbabilityB[i]);
-                output.Write("\n");
-            }
-
-            if (model.NumberOfSVPerClass != null)
-            {
-                output.Write("nr_sv");
-                for (int i = 0; i < nr_class; i++)
-                    output.Write(" " + model.NumberOfSVPerClass[i]);
-                output.Write("\n");
-            }
-
-            output.Write("SV\n");
-            double[][] sv_coef = model.SupportVectorCoefficients;
-            Node[][] SV = model.SupportVectors;
-
-            for (int i = 0; i < l; i++)
-            {
-                for (int j = 0; j < nr_class - 1; j++)
-                    output.Write(sv_coef[j][i] + " ");
-
-                Node[] p = SV[i];
-                if (p.Length == 0)
-                {
-                    output.WriteLine();
-                    continue;
-                }
-                if (param.KernelType == KernelType.PRECOMPUTED)
-                    output.Write("0:{0}", (int)p[0].Value);
-                else
-                {
-                    output.Write("{0}:{1}", p[0].Index, p[0].Value);
-                    for (int j = 1; j < p.Length; j++)
-                        output.Write(" {0}:{1}", p[j].Index, p[j].Value);
-                }
-                output.WriteLine();
-            }
-
-            output.Flush();
-        }
-  }
+        output.WriteLine();
+      }
+
+      output.Flush();
+    }
+  }
 }