public static void Main(String[] args)
{
try
{
// Load the model
java.io.ObjectInputStream stream = new java.io.ObjectInputStream(new java.io.FileInputStream("iris_j48.model"));
weka.classifiers.Classifier qhClassifier = (weka.classifiers.Classifier)stream.readObject();
stream.close();
// This model was trained on 66% of instances from the iris dataset. Test the model on remaining 34% instances.
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader("iris.arff"));
insts.setClassIndex(insts.numAttributes() - 1);
int percentSplit = 66;
int trainSize = insts.numInstances() * percentSplit / 100;
int testSize = insts.numInstances() - trainSize;
int numCorrect = 0;
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = qhClassifier.classifyInstance(currentInst);
if (predictedClass == insts.instance(i).classValue())
{
numCorrect++;
}
}
Console.WriteLine(numCorrect + " out of " + testSize + " correct (" + (double)((double)numCorrect / (double)testSize * 100.0) + "%)");
}
catch (java.lang.Exception e)
{
e.printStackTrace();
}
}
public void WriteFile(List <List <string> > numericDataset, string file, List <string> atrNames, List <string> targetValues, bool isTargetNumeric)
{
weka.core.FastVector targetVals = new weka.core.FastVector();
weka.core.Instances dataRel;
for (int i = 0; i < targetValues.Count; i++)
{
targetVals.addElement(targetValues[i]);
}
weka.core.Instances data;
weka.core.FastVector atts = new weka.core.FastVector();
// fill and prepare the dataset for the arrf file
for (int j = 0; j < insts.numAttributes(); j++)
{
if (j == insts.numAttributes() - 1 && isTargetNumeric == false) // target value can be nominal
{
atts.addElement(new weka.core.Attribute(atrNames[j], targetVals));
}
else
{
atts.addElement(new weka.core.Attribute(atrNames[j]));
}
}
data = new weka.core.Instances("MyRelation", atts, 0);
for (int i = 0; i < insts.numInstances(); i++)
{
double[] vals = new double[insts.numAttributes()];
for (int j = 0; j < insts.numAttributes(); j++)
{
if (j == insts.numAttributes() - 1 && isTargetNumeric == false) // target value can be nominal
{
vals[j] = targetVals.indexOf(numericDataset[j][i]);
}
else
{
vals[j] = Convert.ToDouble(numericDataset[j][i]);
}
}
data.add(new weka.core.DenseInstance(1.0, vals));
}
if (File.Exists(file))
{
File.Delete(file);
}
var saver = new weka.core.converters.ArffSaver();
saver.setInstances(data);
saver.setFile(new java.io.File(file));
// files are saved into {AppFolder}/bin/Debug folder. You can find two files in this path.
saver.writeBatch();
}
public void Test()
{
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader("D:\\android_analysis\\attributes.arff"));
insts.setClassIndex(insts.numAttributes() - 1);
weka.classifiers.Classifier cl = new weka.classifiers.trees.J48();
cl.buildClassifier(insts);
weka.filters.Filter myRandom = new weka.filters.unsupervised.instance.Randomize();
myRandom.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myRandom);
int trainSize = (int)(insts.numInstances() * 0.66);
int testSize = insts.numInstances() - trainSize;
weka.core.Instances train = new weka.core.Instances(insts, 0, trainSize);
cl.buildClassifier(train);
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = cl.classifyInstance(currentInst);
double[] distrs = cl.distributionForInstance(currentInst);
string actual = insts.classAttribute().value((int)currentInst.classValue());
string predicted = insts.classAttribute().value((int)predictedClass);
System.Console.WriteLine("ID: " + (i + 1) + ", " + actual + " --> " + predicted);
}
}
/// <summary>
/// Creates a classifier of the desired type from an .arff file
/// </summary>
/// <param name="ARFFfile">The arff file to read from. Should be a full path.</param>
/// <param name="classifier">The type of classifier you want to make.</param>
/// <returns>The classifier you created</returns>
public void createModel(string ARFFfile, Classifier myClassifier)
{
if (debug)
{
Console.WriteLine("Loading ARFF file " + ARFFfile);
}
_classifier = GetClassifier(myClassifier);
try
{
_dataSet = new weka.core.Instances(new java.io.FileReader(ARFFfile));
if (debug)
{
Console.WriteLine("You have " + _dataSet.numAttributes() + " attributes.");
}
_dataSet.setClassIndex(_dataSet.numAttributes() - 1);
_classifier.buildClassifier(_dataSet);
if (debug)
{
Console.WriteLine(_classifier.toString());
}
}
catch (Exception e)
{
Console.WriteLine("You failed. End of Game. Poor Weka.");
Console.WriteLine(e);
}
}
public void Build(weka.core.Instances instances)
{
WekaUtils.DebugAssert(instances.numClasses() == 3, "instance's numClasses should be 3.");
for (int i = 0; i < m_counts.Length; i++)
{
m_counts[i] = 0;
}
double c = m_tp / m_sl;
foreach (weka.core.Instance instance in instances)
{
int v = (int)instance.classValue();
if (v == 2)
{
m_counts[2] += c;
}
else if (v == 0)
{
m_counts[0]++;
}
else
{
m_counts[1]++;
}
}
}
public static double[] GetCount(Instances instances)
{
double a = 0, b = 0, c = 0;
foreach (Instance i in instances)
{
if (i.classValue() == 2)
c++;
else if (i.classValue() == 0)
a++;
else
b++;
}
//if (a == 0 || b == 0)
// return null;
//double c = a + b;
//a = a / c;
//b = b / c;
//if (a > b)
//{
// a = a / b;
// b = 1;
//}
//else
//{
// b = b / a;
// a = 1;
//}
return new double[] { a, b, c };
}
public void test_has_class_value_with_limited_training_set()
{
TestingRow5[] rows = new[] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "4"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "5"
},
new TestingRow5 {
CLASS = 11.0, ATT_1 = "2"
}
};
InstancesBuilder <TestingRow5> builder = new InstancesBuilder <TestingRow5>(rows, 0, 3);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(6, instances.numInstances());
CollectionAssert.AreEqual(new[] { "1", "2", "3", "4", "5", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "0", "1", "0", "0", "0", "1" }, instances.GetAttrStrings(2));
}
private void AlgoritmAccurancy(weka.core.Instances insts, Classifier classifier, string algoritmName, bool?isNominal = null)
{
ClassifierManager manager = new ClassifierManager(insts);
manager.EliminateTargetAttribute();
if (isNominal == true)
{
manager.Discreatization(manager.Instance);
}
else if (isNominal == false)
{
manager.NominalToBinary(manager.Instance);
manager.Normalization(manager.Instance);
}
manager.Randomize(manager.Instance);
TrainModel model = manager.Train(manager.Instance, classifier);
SuccessfulAlgorithm.Add(new AlgorithmModel()
{
SuccessRatio = manager.FindAccurancy(),
AlgorithName = algoritmName,
TrainModel = model
});;
}
/// <summary> Sets the format of the input instances.
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input instance
/// structure (any instances contained in the object are ignored - only the
/// structure is required).
/// </param>
/// <returns> true if the outputFormat may be collected immediately
/// </returns>
/// <exception cref="Exception">if the format couldn't be set successfully
/// </exception>
public override bool setInputFormat(Instances instanceInfo)
{
base.setInputFormat(instanceInfo);
m_SelectCols.Upper = instanceInfo.numAttributes() - 1;
// Create the output buffer
FastVector attributes = new FastVector();
int outputClass = - 1;
m_SelectedAttributes = m_SelectCols.Selection;
int inStrKeepLen = 0;
int[] inStrKeep = new int[m_SelectedAttributes.Length];
for (int i = 0; i < m_SelectedAttributes.Length; i++)
{
int current = m_SelectedAttributes[i];
if (instanceInfo.classIndex() == current)
{
outputClass = attributes.size();
}
Attribute keep = (Attribute) instanceInfo.attribute(current).copy();
if (keep.type() == Attribute.STRING)
{
inStrKeep[inStrKeepLen++] = current;
}
attributes.addElement(keep);
}
m_InputStringIndex = new int[inStrKeepLen];
Array.Copy(inStrKeep, 0, m_InputStringIndex, 0, inStrKeepLen);
Instances outputFormat = new Instances(instanceInfo.relationName(), attributes, 0);
outputFormat.ClassIndex = outputClass;
setOutputFormat(outputFormat);
return true;
}
public static string WEKA_GETMLP(weka.core.Instances insts)
{
string THEOUTPUT = " ";
try
{
insts.setClassIndex(insts.numAttributes() - 1);
weka.classifiers.functions.MultilayerPerceptron mlp = new weka.classifiers.functions.MultilayerPerceptron();
//SETTING PARAMETERS
weka.core.Utils.splitOptions("-L 0.3 -M 0.2 -N 500 -V 0 -S 0 -E 20 -H 3");
mlp.buildClassifier(insts);
THEOUTPUT = mlp.ToString();
}
catch (java.lang.Exception ex)
{
ex.printStackTrace();
}
return(THEOUTPUT);
//new Program().Method3
}
private weka.core.Instances CreateEmptyInstances()
{
var atts = new java.util.ArrayList();
atts.add(new weka.core.Attribute("x"));
atts.add(new weka.core.Attribute("y"));
if (!ckbClassIsNominal.Checked)
{
atts.add(new weka.core.Attribute("v"));
}
else
{
// - nominal
var attVals = new java.util.ArrayList();
//for(int i=0; i<MAXCLASSNUM; ++i)
// attVals.add(i.ToString());
attVals.add("0");
attVals.add("1");
atts.add(new weka.core.Attribute("v", attVals));
}
weka.core.Instances data = new weka.core.Instances("MyRelation", atts, 0);
data.setClassIndex(data.numAttributes() - 1);
return(data);
}
public List <string> Classify(string model, string test)
{
List <string> ret = new List <string>();
try
{
java.io.ObjectInputStream ois = new java.io.ObjectInputStream(new java.io.FileInputStream(model));
weka.classifiers.Classifier cl = (weka.classifiers.Classifier)ois.readObject();
ois.close();
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader(test));
insts.setClassIndex(insts.numAttributes() - 1);
for (int i = 0; i < 1; i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = cl.classifyInstance(currentInst);
double[] distrs = cl.distributionForInstance(currentInst);
//string actual = insts.classAttribute().value((int)currentInst.classValue());
//string predicted = insts.classAttribute().value((int)predictedClass);
// System.Console.WriteLine("ID: " + (i + 1) + ", " + predicted);
for (int j = 0; j < distrs.Length; j++)
{
string predicted = insts.classAttribute().value(j);
string distr = distrs[j].ToString("#0.000");
ret.Add(predicted + "," + distr);
}
}
return(ret);
}
catch
{
return(ret);
}
}
public static void FilterInstances(weka.core.Instances allInstances)
{
DateTime nextHpDate = DateTime.MinValue;
java.util.LinkedList deleteList = new java.util.LinkedList();
for (int i = 0; i < allInstances.numInstances(); ++i)
{
DateTime nowDate = WekaUtils.GetDateValueFromInstances(allInstances, 0, i);
if (TestParameters2.RealTimeMode && i == allInstances.numInstances() - 1)
{
allInstances.instance(i).setClassValue(0);
allInstances.instance(i).setValue(1, WekaUtils.GetTimeFromDate(Parameters.MaxDate) * 1000);
}
else
{
if (nowDate < nextHpDate)
{
deleteList.Add(allInstances.instance(i));
}
else
{
DateTime hpDate = WekaUtils.GetDateValueFromInstances(allInstances, 1, i);
nextHpDate = hpDate;
}
}
}
allInstances.removeAll(deleteList);
}
private void btnLoad_Click(object sender, EventArgs e)
{
using (OpenFileDialog d = new OpenFileDialog())
{
d.Filter = "Arff File|*.arff";
if (d.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
var fileReader = new java.io.FileReader(d.FileName);
var instances = new weka.core.Instances(new java.io.BufferedReader(fileReader));
instances.setClassIndex(instances.numAttributes() - 1);
fileReader.close();
clear_all();
foreach (weka.core.Instance i in instances)
{
var p = new valuePoint(i.value(0), i.value(1), (int)i.classValue());
if (p.x < 0 || p.x >= 1 || p.y < 0 || p.y >= 1)
{
continue;
}
point_list.Add(p);
}
draw_all_points();
this.pictureBox1.Invalidate();
}
}
}
public override void buildClassifier(Instances instances)
{
// can classifier handle the data?
getCapabilities().testWithFail(instances);
// remove instances with missing class
instances = new Instances(instances);
instances.deleteWithMissingClass();
double sum = 0;
int cnt = 0;
foreach (Instance instance in instances)
{
if (!instance.classIsMissing())
{
sum += instance.value(idxAttribute);
cnt++;
}
}
mean = sum / cnt;
sum = 0;
foreach (Instance instance in instances)
{
if (!instance.classIsMissing())
{
sum += (instance.value(idxAttribute) - mean) * (instance.value(idxAttribute) - mean);
}
}
sigma2 = sum / cnt;
epsilon = SelectBestEpsilon(instances, mean, sigma2);
}
//**************************************************************************************
/// <summary>
/// Returns classifier prediction based on provided parameters.
/// </summary>
/// <param name="iParameters"></param>
public Prediction Predict(float[] iParameters)
{
if (iParameters is null)
{
throw new ArgumentNullException(nameof(iParameters));
}
WaitTillModelReady();
// Create instances object
var instances = new weka.core.Instances("Test", Attributes, 1);
instances.setClassIndex(instances.numAttributes() - 1);
// Create single instance
var instance = new weka.core.DenseInstance(instances.numAttributes() - 1);
instance.setDataset(instances);
// Fill instance with data
for (int i = 0; i < iParameters.Length; i++)
{
instance.setValue(i, iParameters[i]);
}
// Get prediction
double prediction = Model.classifyInstance(instance);
// Convert prediction to decision
return((Prediction)Enum.Parse(typeof(Prediction), instances.classAttribute().value((int)prediction)));
}
public static weka.core.Instances GET_INSTS()
{
// weka.core.converters.ConverterUtils.DataSource DATA = new weka.core.converters.ConverterUtils.DataSource();
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader("testing.arff"));
return(insts);
}
/// <summary> Stump method for building the classifiers.
///
/// </summary>
/// <param name="data">the training data to be used for generating the
/// bagged classifier.
/// </param>
/// <exception cref="Exception">if the classifier could not be built successfully
/// </exception>
public override void buildClassifier(Instances data)
{
if (m_Classifier == null)
{
throw new System.Exception("A base classifier has not been specified!");
}
m_Classifiers = Classifier.makeCopies(m_Classifier, m_NumIterations);
}
/// <summary> Sets the format of the input instances.
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input instance
/// structure (any instances contained in the object are ignored - only the
/// structure is required).
/// </param>
/// <returns> true if the outputFormat may be collected immediately
/// </returns>
public override bool setInputFormat(Instances instanceInfo)
{
base.setInputFormat(instanceInfo);
setOutputFormat(instanceInfo);
//UPGRADE_TODO: The differences in the expected value of parameters for constructor 'java.util.Random.Random' may cause compilation errors. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1092'"
m_Random = new System.Random((System.Int32) m_Seed);
return true;
}
//private weka.core.Instances m_instances;
public void evaluateModel(double[] v, weka.core.Instances instances)
{
double[] c = new double[instances.numInstances()];
for (int i = 0; i < c.Length; ++i)
{
c[i] = instances.instance(i).classValue();
}
evaluateModel(v, c);
}
//Only 1 output: last instance
static public string do_Classification_bySerialClassfier_1out_standAlone
(SerializedClassifier serialClassifier, weka.core.Instances instances, int colClass)
{
instances.setClassIndex(colClass);
weka.core.Instance each = instances.instance(instances.numInstances() - 1);
double predictedClass = serialClassifier.classifyInstance(each);
return(instances.classAttribute().value((int)predictedClass));
}
public WekaNETBridge.WekaClassifier CreateWekaClassifier(weka.classifiers.Classifier currentClassifier, Solution <DRComponent> solution)
{
weka.core.Instances reducedDataset = WekaNETBridge.WekaClassification.GetReducedDataset(this.WekaClassification.OriginalDataset, solution.AttributesToRemove(), solution.InstancesToRemove());
weka.classifiers.Classifier classifier = this.WekaClassification.CreateClassifier(reducedDataset, currentClassifier);
WekaNETBridge.WekaClassifier wekaClassifier = new WekaNETBridge.WekaClassifier();
wekaClassifier.Classifier = classifier;
wekaClassifier.AttributesToRemove = solution.AttributesToRemove();
return(wekaClassifier);
}
public static weka.core.Instances Normalize(weka.core.Instances insts)
{
weka.filters.Filter normalizeFilter = new weka.filters.unsupervised.instance.Normalize();
normalizeFilter.setInputFormat(insts);
weka.filters.Filter missingFilter = new weka.filters.unsupervised.attribute.ReplaceMissingValues();
missingFilter.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, normalizeFilter);
return(weka.filters.Filter.useFilter(insts, missingFilter));
}
public void Test(weka.core.Instances testInstances = null)
{
if (testInstances == null)
{
testInstances = CreateCurrentInstances();
}
//if (m_cls is MLEA.IBatchClassifier)
//{
// StringBuilder sb = new StringBuilder();
// MLEA.IBatchClassifier batchClassifier = m_cls as MLEA.IBatchClassifier;
// double[] d = batchClassifier.classifyInstances(testInstances);
// for (int i = 0; i < d.Length; ++i)
// {
// string s = string.Format("{0}, {1}: {2}", testInstances.instance(i).value(0).ToString("N2"), testInstances.instance(i).value(1).ToString("N2"), d[i].ToString("N0"));
// sb.AppendLine(s);
// }
// this.Invoke(new Action(() =>
// {
// txtEval.Text = sb.ToString();
// }));
//}
//else
{
MLEA.MyEvaluation eval = null;
if (testInstances.classAttribute().isNominal())
{
var costMatrix = MLEA.TestParameters.CostMatrix;
eval = new MLEA.MyEvaluation(costMatrix);
eval.evaluateModel(m_cls, testInstances);
this.Invoke(new Action(() =>
{
txtEval.Text = string.Format("TP:{0}, FP:{1}, Cost:{2}", eval.numTruePositives(1), eval.numFalsePositives(1), eval.totalCost().ToString());
}));
}
else
{
//eval = new MLEA.MyEvaluation(costMatrix);
//eval.evaluateModel(m_cls, testInstances);
//this.Invoke(new Action(() =>
//{
// txtEval.Text = eval.toSummaryString().Replace("\n", System.Environment.NewLine)
// + System.Environment.NewLine;
//}));
}
}
}
public void evaluateModel(weka.classifiers.Classifier classifier, weka.core.Instances instances)
{
double[] v = WekaUtils.ClassifyInstances(instances, classifier);
//weka.classifiers.Evaluation eval = new weka.classifiers.Evaluation(instances, m_costMatrix);
//v = eval.evaluateModel(classifier, instances);
evaluateModel(v, instances);
//int n = 0;
//for (int i = 0; i < v.Length; ++i)
// if (v[i] != 0)
// n++;
}
//void report_write(){
// Evaluation eval = new Evaluation(trainCases);
// eval.crossValidateModel(tree, trainCases, 3, new Random(1));
// System.out.println(eval.toSummaryString("\nResults\n======\n", false));
// System.out.println(eval.toClassDetailsString());
// System.out.println(eval.toMatrixString());
// System.out.println("accuracy:"+eval.pctCorrect());
// System.out.println("Specificity:"+eval.truePositiveRate(0));
// System.out.println("sensitivity:"+eval.trueNegativeRate(0));
//}
//======================================================================
//--------- Seperate Part -------
public static weka.core.Instances getInst(string path_file, int colIndex)
{
try
{
weka.core.Instances ins = new weka.core.Instances(new java.io.FileReader(path_file));
ins.setClassIndex(colIndex);
return(ins);
}
catch (Exception ex)
{
TheSys.showError("Err: " + ex.ToString(), true);
return(null);
}
}
/// <summary>
/// Loads a classifier from a model file.
/// </summary>
/// <param name="filename">The filename (full path) that you want to load. Should be an .arff file and a .model file in your working directory.</param>
public void loadModel(string filename)
{
if (debug)
{
Console.WriteLine("Model loading...");
}
_classifier = (weka.classifiers.Classifier)weka.core.SerializationHelper.read(filename + MODEL);
_dataSet = new weka.core.Instances(new java.io.FileReader(filename + ARFF));
_dataSet.setClassIndex(_dataSet.numAttributes() - 1);
if (debug)
{
Console.WriteLine("Model locked and loaded!");
}
}
private weka.core.Instances ReadFile(string path)
{
try
{
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader(path));
insts.setClassIndex(insts.numAttributes() - 1);
return(insts);
}
catch (java.lang.Exception ex)
{
ex.printStackTrace();
MessageBox.Show(ex.ToString(), "Error reading file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(null);
}
}
//**************************************************************************************
/// <summary>
/// Creates and fills in weka instances object.
/// </summary>
protected static weka.core.Instances CreateInstances(CandlestickCollection iCandlesticks, List <int> iTrainingPoints, java.util.ArrayList iAttributes, List <ClassifierParameter> iParameters, Candlestick.Period iPeriod, int iMaxProfitTime)
{
int dataSize = iTrainingPoints.Count;
// Create instance object
var instances = new weka.core.Instances("Data", iAttributes, dataSize);
// Set class index
instances.setClassIndex(instances.numAttributes() - 1);
// Fill instances
FillInstances(instances, CalculateDecisions(iCandlesticks[kTrainingPeriod], iTrainingPoints, iMaxProfitTime), CalculateParameters(iParameters, iCandlesticks, iTrainingPoints, iPeriod));
return(instances);
}
public string BuildCandlePatternDeals()
{
WekaUtils.Instance.WriteLog("Now BuildCandlePatternDeals");
var cp = TestParameters2.CandidateParameter;
string resultFile = TestParameters.GetBaseFilePath(string.Format("IncrementTest_{0}_{1}_{2}.txt",
cp.MainSymbol, "CandlePattern", cp.MainPeriod));
if (File.Exists(resultFile))
{
return(string.Empty);
}
string txtFileName = TestParameters.GetBaseFilePath(string.Format("{0}_{1}_{2}.txt",
cp.MainSymbol, "CandlePattern", cp.MainPeriod));
System.IO.File.Delete(txtFileName);
if (!File.Exists(txtFileName))
{
bool ret = GenerateCandlePatterns(txtFileName);
if (!ret)
{
return(string.Empty);
}
}
string arffFileName = TestParameters.GetBaseFilePath(string.Format("{0}_{1}_{2}.arff",
cp.MainSymbol, "CandlePattern", cp.MainPeriod));
if (!System.IO.File.Exists(arffFileName))
{
GenerateArff(arffFileName, txtFileName);
}
weka.core.Instances allInstances = WekaUtils.LoadInstances(arffFileName);
//FilterInstances(allInstances);
WekaUtils.SaveInstances(allInstances, arffFileName);
int n = (int)(24 / TestParameters2.MainPeriodOfHour);
n = TestParameters2.nPeriod;
return(TestManager.IncrementTest(allInstances, () =>
{
return WekaUtils.CreateClassifier(typeof(MinDistanceClassifier));
//return WekaUtils.CreateClassifier(typeof(weka.classifiers.lazy.IBk));
}, "1,2,3,4", resultFile, n));
}
public static void CalculateSuccessForAnn(weka.core.Instances originalInsts)
{
try
{
var form = Form.ActiveForm as Form1;
form.successPrcAnn.Text = "Training...";
form.successRtAnn.Text = "../" + testSize;
weka.core.Instances insts = originalInsts;
// Pre-process
insts = ConvertNominalToNumeric(insts);
insts = Normalize(insts);
// Classify
weka.classifiers.Classifier cl = new weka.classifiers.functions.MultilayerPerceptron();
weka.core.Instances train = new weka.core.Instances(insts, 0, trainSize);
cl.buildClassifier(train);
int numCorrect = 0;
double percentage = 0;
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = cl.classifyInstance(currentInst);
if (predictedClass == insts.instance(i).classValue())
{
numCorrect++;
}
percentage = (double)numCorrect / (double)testSize * 100.0;
form.successRtAnn.Text = numCorrect + "/" + testSize;
form.successPrcAnn.Text = String.Format("{0:0.00}", percentage) + "%";
}
succesRates.Add(Classifier.ANN, percentage);
classifiers.Add(Classifier.ANN, cl);
}
catch (java.lang.Exception ex)
{
ex.printStackTrace();
MessageBox.Show(ex.ToString(), "Error for Neural Network", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (Exception)
{
MessageBox.Show("Error for Neural Network", "Error for Neural Network", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public void CSV2Arff()
{
//load csv
weka.core.converters.CSVLoader loader = new weka.core.converters.CSVLoader();
//weka.core.converters.TextDirectoryLoader loader = new weka.core.converters.TextDirectoryLoader();
// C:/ Users / DELL / source / repos / WekafromCtest / WekafromCtest /
loader.setSource(new java.io.File("D:/final_version/Gesture-Gis-master/GestureGis2/ComparisonFeaturefile.txt"));
weka.core.Instances data = loader.getDataSet();
//save arff
weka.core.converters.ArffSaver saver = new weka.core.converters.ArffSaver();
saver.setInstances(data);
//and save as arff file
saver.setFile(new java.io.File("D:/final_version/Gesture-Gis-master/GestureGis2/ComparisonFeaturefile.arff"));
saver.writeBatch();
}
private void btnLoadStep_Click(object sender, EventArgs e)
{
if (m_loadStepInstances == null)
{
using (OpenFileDialog d = new OpenFileDialog())
{
d.Filter = "Arff File|*.arff";
if (d.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
m_loadStepInstances = new weka.core.Instances(new java.io.BufferedReader(new java.io.FileReader(d.FileName)));
m_loadStepInstances.setClassIndex(m_loadStepInstances.numAttributes() - 1);
clear_all();
}
}
}
else
{
for (int i = m_loadStepIdx; i < m_loadStepInstances.numInstances(); ++i)
{
var ins = m_loadStepInstances.instance(i);
var p = new valuePoint(ins.value(0), ins.value(1), (int)ins.classValue());
if (p.x < 0 || p.x >= 1 || p.y < 0 || p.y >= 1)
{
continue;
}
point_list.Add(p);
draw_point(p);
m_loadStepIdx = i + 1;
if (i % 1000 == 0)
{
break;
}
}
pictureBox1.Invalidate();
if (m_loadStepIdx == m_loadStepInstances.numInstances())
{
m_loadStepIdx = 0;
m_loadStepInstances = null;
}
}
}
protected void Button2_Click(object sender, EventArgs e)
{
weka.core.Instances data = new weka.core.Instances(new java.io.FileReader("d:\\train.arff"));
data.setClassIndex(data.numAttributes() - 1);
weka.classifiers.Classifier cls = new weka.classifiers.bayes.NaiveBayes();
// weka.classifiers.functions.supportVector.SMOset();
int runs = 1;
int folds = 10;
//string sq = "delete from nbresults";
//dbc.execfn(sq);
// perform cross-validation
for (int i = 0; i < runs; i++)
{
// randomize data
int seed = i + 1;
java.util.Random rand = new java.util.Random(seed);
weka.core.Instances randData = new weka.core.Instances(data);
randData.randomize(rand);
if (randData.classAttribute().isNominal())
{
randData.stratify(folds);
}
// weka.classifiers.trees.j48 jj;
weka.classifiers.Evaluation eval = new weka.classifiers.Evaluation(randData);
for (int n = 0; n < folds; n++)
{
weka.core.Instances train = randData.trainCV(folds, n);
weka.core.Instances test = randData.testCV(folds, n);
// build and evaluate classifier
weka.classifiers.Classifier clsCopy = weka.classifiers.Classifier.makeCopy(cls);
clsCopy.buildClassifier(train);
eval.evaluateModel(clsCopy, test);
}
preci_value.Text = eval.precision(0).ToString();
recall_value.Text = eval.recall(0).ToString();
acc_value.Text = eval.fMeasure(0).ToString();
string s = "NB";
// string str = "insert into evaluation values('" + instid.Text + "','" + courid.Text.ToString() + "','" + preci_value.Text.ToString() + "','" + recall_value.Text.ToString() + "','" + acc_value.Text.ToString() + "','" + s + "' )";
// db.execfn(str);
// MessageBox.Show("saved");
}
}
//Knn
public static double Knn(weka.core.Instances insts)
{
try
{
insts.setClassIndex(insts.numAttributes() - 1);
Knncl = new weka.classifiers.lazy.IBk();
weka.filters.Filter myDummy = new weka.filters.unsupervised.attribute.NominalToBinary();
myDummy.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myDummy);
weka.filters.Filter myNormalize = new weka.filters.unsupervised.instance.Normalize();
myNormalize.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myNormalize);
weka.filters.Filter myRandom = new weka.filters.unsupervised.instance.Randomize();
myRandom.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myRandom);
int trainSize = insts.numInstances() * percentSplit / 100;
int testSize = insts.numInstances() - trainSize;
weka.core.Instances train = new weka.core.Instances(insts, 0, trainSize);
Knncl.buildClassifier(train);
int numCorrect = 0;
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = Knncl.classifyInstance(currentInst);
if (predictedClass == insts.instance(i).classValue())
{
numCorrect++;
}
}
return((double)numCorrect / (double)testSize * 100.0);
}
catch (java.lang.Exception ex)
{
ex.printStackTrace();
return(0);
}
}
///
/// <summary> * Generates the classifier.
/// * </summary>
/// * <param name="instances"> set of instances serving as training data </param>
/// * <exception cref="Exception"> if the classifier has not been generated successfully </exception>
///
public override void buildClassifier(Instances instances)
{
// can classifier handle the data?
getCapabilities().testWithFail(instances);
// remove instances with missing class
instances = new Instances(instances);
instances.deleteWithMissingClass();
double sumOfWeights = 0;
WekaUtils.DebugAssert(instances.numClasses() == 3, "instance's numClasses should be 3.");
m_counts = new double[instances.numClasses()];
m_normalCounts = new double[instances.numClasses()];
for (int i = 0; i < m_counts.Length; i++)
{
m_counts[i] = 0;
m_normalCounts[i] = 0;
}
double c = m_tp / m_sl;
foreach (Instance instance in instances)
{
int v = (int)instance.classValue();
if (v == 2)
{
m_counts[v] += instance.weight() * c;
sumOfWeights += instance.weight() * c;
}
else
{
m_counts[v] += instance.weight();
sumOfWeights += instance.weight();
}
}
double start = 0;
for (int i = 0; i < m_counts.Length; ++i)
{
m_normalCounts[i] = (double)m_counts[i] / sumOfWeights + start;
start = m_normalCounts[i];
}
}
public static void classifyTest()
{
try
{
Console.WriteLine("Hello Java, from C#!");
weka.core.Instances insts = new weka.core.Instances(new java.io.FileReader("D:/iris.arff"));
insts.setClassIndex(insts.numAttributes() - 1);
weka.classifiers.Classifier cl = new weka.classifiers.trees.J48();
Console.WriteLine("Performing " + 33 + "% split evaluation.");
//randomize the order of the instances in the dataset.
weka.filters.Filter myRandom = new weka.filters.unsupervised.instance.Randomize();
myRandom.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myRandom);
int trainSize = insts.numInstances() * 33 / 100;
int testSize = insts.numInstances() - trainSize;
weka.core.Instances train = new weka.core.Instances(insts, 0, trainSize);
cl.buildClassifier(train);
int numCorrect = 0;
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = cl.classifyInstance(currentInst);
if (predictedClass == insts.instance(i).classValue())
numCorrect++;
}
Console.WriteLine(numCorrect + " out of " + testSize + " correct (" +
(double)((double)numCorrect / (double)testSize * 100.0) + "%)");
}
catch (Exception ex)
{
}
}
public static void ClassifyTest()
{
try
{
weka.core.Instances insts = new ConverterUtils.DataSource("weka").getDataSet();
insts.setClassIndex(insts.numAttributes() - 1);
weka.classifiers.Classifier cl = new weka.classifiers.trees.J48();
Console.WriteLine("Performing " + percentSplit + "% split evaluation.");
//randomize the order of the instances in the dataset.
weka.filters.Filter myRandom = new weka.filters.unsupervised.instance.Randomize();
myRandom.setInputFormat(insts);
insts = weka.filters.Filter.useFilter(insts, myRandom);
int trainSize = insts.numInstances()*percentSplit/100;
int testSize = insts.numInstances() - trainSize;
weka.core.Instances train = new weka.core.Instances(insts, 0, trainSize);
cl.buildClassifier(train);
int numCorrect = 0;
for (int i = trainSize; i < insts.numInstances(); i++)
{
weka.core.Instance currentInst = insts.instance(i);
double predictedClass = cl.classifyInstance(currentInst);
if (predictedClass == insts.instance(i).classValue())
numCorrect++;
}
Console.WriteLine(numCorrect + " out of " + testSize + " correct (" +
(double) ((double) numCorrect/(double) testSize*100.0) + "%)");
}
catch (java.lang.Exception ex)
{
ex.printStackTrace();
}
}
///
/// <summary> * Generates the classifier.
/// * </summary>
/// * <param name="instances"> set of instances serving as training data </param>
/// * <exception cref="Exception"> if the classifier has not been generated successfully </exception>
///
public override void buildClassifier(Instances instances)
{
// can classifier handle the data?
getCapabilities().testWithFail(instances);
// remove instances with missing class
var trainInstances = new Instances(instances);
trainInstances.deleteWithMissingClass();
WekaUtils.DebugAssert(instances.numClasses() == 3, "instance's numClasses should be 3.");
m_counts = new double[instances.numClasses()];
for (int i = 0; i < m_counts.Length; i++)
{
m_counts[i] = 0;
}
//double c = m_tp / m_sl;
foreach (Instance instance in instances)
{
int v = (int)instance.classValue();
m_counts[v] += 1;
sumOfWeights += 1;
}
}
/// <summary> Applies the cost matrix to a set of instances. If a random number generator is
/// supplied the instances will be resampled, otherwise they will be rewighted.
/// Adapted from code once sitting in Instances.java
///
/// </summary>
/// <param name="data">the instances to reweight.
/// </param>
/// <param name="random">a random number generator for resampling, if null then instances are
/// rewighted.
/// </param>
/// <returns> a new dataset reflecting the cost of misclassification.
/// </returns>
/// <exception cref="Exception">if the data has no class or the matrix in inappropriate.
/// </exception>
public virtual Instances applyCostMatrix(Instances data, System.Random random)
{
double sumOfWeightFactors = 0, sumOfMissClassWeights, sumOfWeights;
double[] weightOfInstancesInClass, weightFactor, weightOfInstances;
Instances newData;
if (data.classIndex() < 0)
{
throw new System.Exception("Class index is not set!");
}
if (size() != data.numClasses())
{
throw new System.Exception("Misclassification cost matrix has " + "wrong format!");
}
weightFactor = new double[data.numClasses()];
weightOfInstancesInClass = new double[data.numClasses()];
for (int j = 0; j < data.numInstances(); j++)
{
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
weightOfInstancesInClass[(int) data.instance(j).classValue()] += data.instance(j).weight();
}
sumOfWeights = Utils.sum(weightOfInstancesInClass);
// normalize the matrix if not already
for (int i = 0; i < size(); i++)
if (!Utils.eq(getXmlElement(i, i), 0))
{
CostMatrix normMatrix = new CostMatrix(this);
normMatrix.normalize();
return normMatrix.applyCostMatrix(data, random);
}
for (int i = 0; i < data.numClasses(); i++)
{
// Using Kai Ming Ting's formula for deriving weights for
// the classes and Breiman's heuristic for multiclass
// problems.
sumOfMissClassWeights = 0;
for (int j = 0; j < data.numClasses(); j++)
{
if (Utils.sm(getXmlElement(i, j), 0))
{
throw new System.Exception("Neg. weights in misclassification " + "cost matrix!");
}
sumOfMissClassWeights += getXmlElement(i, j);
}
weightFactor[i] = sumOfMissClassWeights * sumOfWeights;
sumOfWeightFactors += sumOfMissClassWeights * weightOfInstancesInClass[i];
}
for (int i = 0; i < data.numClasses(); i++)
{
weightFactor[i] /= sumOfWeightFactors;
}
// Store new weights
weightOfInstances = new double[data.numInstances()];
for (int i = 0; i < data.numInstances(); i++)
{
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
weightOfInstances[i] = data.instance(i).weight() * weightFactor[(int) data.instance(i).classValue()];
}
// Change instances weight or do resampling
if (random != null)
{
return data.resampleWithWeights(random, weightOfInstances);
}
else
{
Instances instances = new Instances(data);
for (int i = 0; i < data.numInstances(); i++)
{
instances.instance(i).Weight = weightOfInstances[i];
}
return instances;
}
}
private void btnLoadStep_Click(object sender, EventArgs e)
{
if (m_loadStepInstances == null)
{
using (OpenFileDialog d = new OpenFileDialog())
{
d.Filter = "Arff File|*.arff";
if (d.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
m_loadStepInstances = new weka.core.Instances(new java.io.BufferedReader(new java.io.FileReader(d.FileName)));
m_loadStepInstances.setClassIndex(m_loadStepInstances.numAttributes() - 1);
clear_all();
}
}
}
else
{
for (int i = m_loadStepIdx; i < m_loadStepInstances.numInstances(); ++i)
{
var ins = m_loadStepInstances.instance(i);
var p = new valuePoint(ins.value(0), ins.value(1), (int)ins.classValue());
if (p.x < 0 || p.x >= 1 || p.y < 0 || p.y >= 1)
continue;
point_list.Add(p);
draw_point(p);
m_loadStepIdx = i + 1;
if (i % 1000 == 0)
{
break;
}
}
pictureBox1.Invalidate();
if (m_loadStepIdx == m_loadStepInstances.numInstances())
{
m_loadStepIdx = 0;
m_loadStepInstances = null;
}
}
}
/// <summary> This will remove all buffered instances from the inputformat dataset.
/// Use this method rather than getInputFormat().delete();
/// </summary>
protected internal virtual void flushInput()
{
if (m_InputStringAtts.Length > 0)
{
m_InputFormat = m_InputFormat.stringFreeStructure();
}
else
{
// This more efficient than new Instances(m_InputFormat, 0);
m_InputFormat.delete();
}
}
/// <summary> Takes string values referenced by an Instance and copies them from a
/// source dataset to a destination dataset. The instance references are
/// updated to be valid for the destination dataset. The instance may have the
/// structure (i.e. number and attribute position) of either dataset (this
/// affects where references are obtained from). Only works if the number
/// of string attributes is the same in both indices (implicitly these string
/// attributes should be semantically same but just with shifted positions).
///
/// </summary>
/// <param name="instance">the instance containing references to strings in the source
/// dataset that will have references updated to be valid for the destination
/// dataset.
/// </param>
/// <param name="instSrcCompat">true if the instance structure is the same as the
/// source, or false if it is the same as the destination (i.e. which of the
/// string attribute indices contains the correct locations for this instance).
/// </param>
/// <param name="srcDataset">the dataset for which the current instance string
/// references are valid (after any position mapping if needed)
/// </param>
/// <param name="srcStrAtts">an array containing the indices of string attributes
/// in the source datset.
/// </param>
/// <param name="destDataset">the dataset for which the current instance string
/// references need to be inserted (after any position mapping if needed)
/// </param>
/// <param name="destStrAtts">an array containing the indices of string attributes
/// in the destination datset.
/// </param>
protected internal virtual void copyStringValues(Instance instance, bool instSrcCompat, Instances srcDataset, int[] srcStrAtts, Instances destDataset, int[] destStrAtts)
{
if (srcDataset == destDataset)
{
return ;
}
if (srcStrAtts.Length != destStrAtts.Length)
{
throw new System.ArgumentException("Src and Dest string indices differ in length!!");
}
for (int i = 0; i < srcStrAtts.Length; i++)
{
int instIndex = instSrcCompat?srcStrAtts[i]:destStrAtts[i];
Attribute src = srcDataset.attribute(srcStrAtts[i]);
Attribute dest = destDataset.attribute(destStrAtts[i]);
if (!instance.isMissing(instIndex))
{
//System.err.println(instance.value(srcIndex)
// + " " + src.numValues()
// + " " + dest.numValues());
//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
int valIndex = dest.addStringValue(src, (int) instance.value_Renamed(instIndex));
// setValue here shouldn't be too slow here unless your dataset has
// squillions of string attributes
instance.setValue(instIndex, (double) valIndex);
}
}
}
/// <summary> Copies string values contained in the instance copied to a new
/// dataset. The Instance must already be assigned to a dataset. This
/// dataset and the destination dataset must have the same structure.
///
/// </summary>
/// <param name="instance">the Instance containing the string values to copy.
/// </param>
/// <param name="destDataset">the destination set of Instances
/// </param>
/// <param name="strAtts">an array containing the indices of any string attributes
/// in the dataset.
/// </param>
private void copyStringValues(Instance inst, Instances destDataset, int[] strAtts)
{
if (strAtts.Length == 0)
{
return ;
}
if (inst.dataset() == null)
{
throw new System.ArgumentException("Instance has no dataset assigned!!");
}
else if (inst.dataset().numAttributes() != destDataset.numAttributes())
{
throw new System.ArgumentException("Src and Dest differ in # of attributes!!");
}
copyStringValues(inst, true, inst.dataset(), strAtts, destDataset, strAtts);
}
/// <summary> Sets the format of the input instances.
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input instance
/// structure (any instances contained in the object are ignored - only the
/// structure is required).
/// </param>
/// <exception cref="UnsupportedAttributeTypeException">if the specified attribute
/// is neither numeric or nominal.
/// </exception>
public override bool setInputFormat(Instances instanceInfo)
{
base.setInputFormat(instanceInfo);
m_AttIndex.Upper=instanceInfo.numAttributes() - 1;
if (!Numeric && !Nominal)
{
throw new Exception("Can only handle numeric " + "or nominal attributes.");
}
m_Values.Upper=instanceInfo.attribute(m_AttIndex.Index).numValues() - 1;
if (Nominal && m_ModifyHeader)
{
instanceInfo = new Instances(instanceInfo, 0); // copy before modifying
Attribute oldAtt = instanceInfo.attribute(m_AttIndex.Index);
int[] selection = m_Values.Selection;
FastVector newVals = new FastVector();
for (int i = 0; i < selection.Length; i++)
{
newVals.addElement(oldAtt.value_Renamed(selection[i]));
}
instanceInfo.deleteAttributeAt(m_AttIndex.Index);
instanceInfo.insertAttributeAt(new Attribute(oldAtt.name(), newVals), m_AttIndex.Index);
m_NominalMapping = new int[oldAtt.numValues()];
for (int i = 0; i < m_NominalMapping.Length; i++)
{
bool found = false;
for (int j = 0; j < selection.Length; j++)
{
if (selection[j] == i)
{
m_NominalMapping[i] = j;
found = true;
break;
}
}
if (!found)
{
m_NominalMapping[i] = - 1;
}
}
}
setOutputFormat(instanceInfo);
return true;
}
/// <summary> Filters an entire set of instances through a filter and returns
/// the new set.
///
/// </summary>
/// <param name="data">the data to be filtered
/// </param>
/// <param name="filter">the filter to be used
/// </param>
/// <returns> the filtered set of data
/// </returns>
/// <exception cref="Exception">if the filter can't be used successfully
/// </exception>
public static Instances useFilter(Instances data, Filter filter)
{
/*
System.err.println(filter.getClass().getName()
+ " in:" + data.numInstances());
*/
for (int i = 0; i < data.numInstances(); i++)
{
filter.input(data.instance(i));
}
filter.batchFinished();
Instances newData = filter.getOutputFormat();
Instance processed;
while ((processed = filter.output()) != null)
{
newData.add(processed);
}
/*
System.err.println(filter.getClass().getName()
+ " out:" + newData.numInstances());
*/
return newData;
}
/// <summary> Sets the format of the input instances.
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input
/// instance structure (any instances contained in the object are
/// ignored - only the structure is required).
/// </param>
/// <returns> true if the outputFormat may be collected immediately
/// </returns>
/// <exception cref="Exception">if the input format can't be set
/// successfully
/// </exception>
public override bool setInputFormat(Instances instanceInfo)
{
base.setInputFormat(instanceInfo);
setOutputFormat(instanceInfo);
return true;
}
/// <summary> Method for testing filters ability to process multiple batches.
///
/// </summary>
/// <param name="argv">should contain the following arguments:<br>
/// -i (first) input file <br>
/// -o (first) output file <br>
/// -r (second) input file <br>
/// -s (second) output file <br>
/// -c class_index <br>
/// or -h for help on options
/// </param>
/// <exception cref="Exception">if something goes wrong or the user requests help on
/// command options
/// </exception>
public static void batchFilterFile(Filter filter, System.String[] options)
{
Instances firstData = null;
Instances secondData = null;
//UPGRADE_ISSUE: Class hierarchy differences between 'java.io.Reader' and 'System.IO.StreamReader' may cause compilation errors. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1186'"
System.IO.StreamReader firstInput = null;
//UPGRADE_ISSUE: Class hierarchy differences between 'java.io.Reader' and 'System.IO.StreamReader' may cause compilation errors. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1186'"
System.IO.StreamReader secondInput = null;
System.IO.StreamWriter firstOutput = null;
System.IO.StreamWriter secondOutput = null;
bool helpRequest;
try
{
helpRequest = Utils.getFlag('h', options);
System.String fileName = Utils.getOption('i', options);
if (fileName.Length != 0)
{
//UPGRADE_TODO: The differences in the expected value of parameters for constructor 'java.io.BufferedReader.BufferedReader' may cause compilation errors. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1092'"
//UPGRADE_WARNING: At least one expression was used more than once in the target code. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1181'"
//UPGRADE_TODO: Constructor 'java.io.FileReader.FileReader' was converted to 'System.IO.StreamReader' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073'"
firstInput = new System.IO.StreamReader(new System.IO.StreamReader(fileName, System.Text.Encoding.Default).BaseStream, new System.IO.StreamReader(fileName, System.Text.Encoding.Default).CurrentEncoding);
}
else
{
throw new System.Exception("No first input file given.\n");
}
fileName = Utils.getOption('r', options);
if (fileName.Length != 0)
{
//UPGRADE_TODO: The differences in the expected value of parameters for constructor 'java.io.BufferedReader.BufferedReader' may cause compilation errors. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1092'"
//UPGRADE_WARNING: At least one expression was used more than once in the target code. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1181'"
//UPGRADE_TODO: Constructor 'java.io.FileReader.FileReader' was converted to 'System.IO.StreamReader' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073'"
secondInput = new System.IO.StreamReader(new System.IO.StreamReader(fileName, System.Text.Encoding.Default).BaseStream, new System.IO.StreamReader(fileName, System.Text.Encoding.Default).CurrentEncoding);
}
else
{
throw new System.Exception("No second input file given.\n");
}
fileName = Utils.getOption('o', options);
if (fileName.Length != 0)
{
//UPGRADE_TODO: Constructor 'java.io.FileOutputStream.FileOutputStream' was converted to 'System.IO.FileStream.FileStream' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioFileOutputStreamFileOutputStream_javalangString'"
firstOutput = new System.IO.StreamWriter(new System.IO.FileStream(fileName, System.IO.FileMode.Create), System.Text.Encoding.Default);
}
else
{
firstOutput = new System.IO.StreamWriter(System.Console.OpenStandardOutput(), System.Text.Encoding.Default);
}
fileName = Utils.getOption('s', options);
if (fileName.Length != 0)
{
//UPGRADE_TODO: Constructor 'java.io.FileOutputStream.FileOutputStream' was converted to 'System.IO.FileStream.FileStream' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioFileOutputStreamFileOutputStream_javalangString'"
secondOutput = new System.IO.StreamWriter(new System.IO.FileStream(fileName, System.IO.FileMode.Create), System.Text.Encoding.Default);
}
else
{
secondOutput = new System.IO.StreamWriter(System.Console.OpenStandardOutput(), System.Text.Encoding.Default);
}
System.String classIndex = Utils.getOption('c', options);
// if (filter instanceof OptionHandler)
// {
// ((OptionHandler)filter).setOptions(options);
// }
Utils.checkForRemainingOptions(options);
if (helpRequest)
{
throw new System.Exception("Help requested.\n");
}
firstData = new Instances(firstInput, 1);
secondData = new Instances(secondInput, 1);
if (!secondData.equalHeaders(firstData))
{
throw new System.Exception("Input file formats differ.\n");
}
if (classIndex.Length != 0)
{
if (classIndex.Equals("first"))
{
firstData.ClassIndex = 0;
secondData.ClassIndex = 0;
}
else if (classIndex.Equals("last"))
{
firstData.ClassIndex = firstData.numAttributes() - 1;
secondData.ClassIndex = secondData.numAttributes() - 1;
}
else
{
firstData.ClassIndex = System.Int32.Parse(classIndex) - 1;
secondData.ClassIndex = System.Int32.Parse(classIndex) - 1;
}
}
}
catch (System.Exception ex)
{
System.String filterOptions = "";
// Output the error and also the valid options
// if (filter instanceof OptionHandler)
// {
// filterOptions += "\nFilter options:\n\n";
// Enumeration enu = ((OptionHandler)filter).listOptions();
// while (enu.hasMoreElements())
// {
// Option option = (Option) enu.nextElement();
// filterOptions += option.synopsis() + '\n'
// + option.description() + "\n";
// }
// }
System.String genericOptions = "\nGeneral options:\n\n" + "-h\n" + "\tGet help on available options.\n" + "-i <filename>\n" + "\tThe file containing first input instances.\n" + "-o <filename>\n" + "\tThe file first output instances will be written to.\n" + "-r <filename>\n" + "\tThe file containing second input instances.\n" + "-s <filename>\n" + "\tThe file second output instances will be written to.\n" + "-c <class index>\n" + "\tThe number of the attribute to use as the class.\n" + "\t\"first\" and \"last\" are also valid entries.\n" + "\tIf not supplied then no class is assigned.\n";
//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Throwable.getMessage' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
throw new System.Exception('\n' + ex.Message + filterOptions + genericOptions);
}
bool printedHeader = false;
if (filter.setInputFormat(firstData))
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
firstOutput.WriteLine(filter.getOutputFormat().ToString());
printedHeader = true;
}
// Pass all the instances to the filter
while (firstData.readInstance(firstInput))
{
if (filter.input(firstData.instance(0)))
{
if (!printedHeader)
{
throw new System.ApplicationException("Filter didn't return true from setInputFormat() " + "earlier!");
}
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
firstOutput.WriteLine(filter.output().ToString());
}
firstData.delete(0);
}
// Say that input has finished, and print any pending output instances
if (filter.batchFinished())
{
if (!printedHeader)
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
firstOutput.WriteLine(filter.getOutputFormat().ToString());
}
while (filter.numPendingOutput() > 0)
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
firstOutput.WriteLine(filter.output().ToString());
}
}
if (firstOutput != null)
{
//UPGRADE_NOTE: Exceptions thrown by the equivalent in .NET of method 'java.io.PrintWriter.close' may be different. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1099'"
firstOutput.Close();
}
printedHeader = false;
if (filter.OutputFormatDefined)
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
secondOutput.WriteLine(filter.getOutputFormat().ToString());
printedHeader = true;
}
// Pass all the second instances to the filter
while (secondData.readInstance(secondInput))
{
if (filter.input(secondData.instance(0)))
{
if (!printedHeader)
{
throw new System.ApplicationException("Filter didn't return true from" + " isOutputFormatDefined() earlier!");
}
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
secondOutput.WriteLine(filter.output().ToString());
}
secondData.delete(0);
}
// Say that input has finished, and print any pending output instances
if (filter.batchFinished())
{
if (!printedHeader)
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
secondOutput.WriteLine(filter.getOutputFormat().ToString());
}
while (filter.numPendingOutput() > 0)
{
//UPGRADE_TODO: Method 'java.io.PrintWriter.println' was converted to 'System.IO.TextWriter.WriteLine' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javaioPrintWriterprintln_javalangString'"
secondOutput.WriteLine(filter.output().ToString());
}
}
if (secondOutput != null)
{
//UPGRADE_NOTE: Exceptions thrown by the equivalent in .NET of method 'java.io.PrintWriter.close' may be different. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1099'"
secondOutput.Close();
}
}
//Added by Alain Espinosa///////////////////////////////////////////////////////
/// <summary> Filters an entire set of instances and returnsthe new set.
///
/// </summary>
/// <param name="data">the data to be filtered
/// </param>
/// <returns> the filtered set of data
/// </returns>
/// <exception cref="Exception">if the filter can't be used successfully
/// </exception>
public virtual Instances FilterInstances(Instances data)
{
setInputFormat(data);
for (int i = 0; i < data.numInstances(); i++)
{
input(data.instance(i));
}
batchFinished();
Instances newData = getOutputFormat();
Instance processed;
while ((processed = output()) != null)
{
newData.add(processed);
}
return newData;
}
/// <summary> Sets the format of the input instances.
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input
/// instance structure (any instances contained in the object are
/// ignored - only the structure is required).
/// </param>
/// <returns> true if the outputFormat may be collected immediately
/// </returns>
/// <exception cref="Exception">if the input format can't be set
/// successfully
/// </exception>
public override bool setInputFormat(Instances instanceInfo)
{
if (instanceInfo.classIndex() < 0 || !instanceInfo.classAttribute().Nominal)
{
throw new System.ArgumentException("Supervised resample requires nominal class");
}
base.setInputFormat(instanceInfo);
setOutputFormat(instanceInfo);
return true;
}
public weka.core.Instances GenerateClassifierInstances(int rIdx)
{
var atts = generateStateAttributes(rIdx);
var classVals = new weka.core.FastVector();
classVals.addElement("Fold");
classVals.addElement("Call");
classVals.addElement("Raise");
atts.addElement(new weka.core.Attribute("Action", classVals));
var data = new weka.core.Instances(((Rounds)rIdx).ToString().ToLower() + "_data", atts, 0);
data.setClassIndex(data.numAttributes() - 1);
return data;
}
public weka.core.Instances[] GenerateRegressionInstances(int rIdx)
{
var instances = new weka.core.Instances[3];
string dataName = ((Rounds)rIdx).ToString().ToLower() + "_{0}_data";
for(int i = 0; i < 3; i++)
{
var atts = generateStateAttributes(rIdx);
string className = i == 0 ? "Fold" : i == 1 ? "Call" : "Raise";
atts.addElement(new weka.core.Attribute(className));
var data = new weka.core.Instances(string.Format(dataName, className.ToLower()), atts, 0);
data.setClassIndex(data.numAttributes() - 1);
instances[i] = data;
}
return instances;
}
private void btnLoad_Click(object sender, EventArgs e)
{
using (OpenFileDialog d = new OpenFileDialog())
{
d.Filter = "Arff File|*.arff";
if (d.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
var fileReader = new java.io.FileReader(d.FileName);
var instances = new weka.core.Instances(new java.io.BufferedReader(fileReader));
instances.setClassIndex(instances.numAttributes() - 1);
fileReader.close();
clear_all();
foreach (weka.core.Instance i in instances)
{
var p = new valuePoint(i.value(0), i.value(1), (int)i.classValue());
if (p.x < 0 || p.x >= 1 || p.y < 0 || p.y >= 1)
continue;
point_list.Add(p);
}
draw_all_points();
this.pictureBox1.Invalidate();
}
}
}
/// <summary> Output an instance after filtering and remove from the output queue.
///
/// </summary>
/// <returns> the instance that has most recently been filtered (or null if
/// the queue is empty).
/// </returns>
/// <exception cref="NullPointerException">if no output structure has been defined
/// </exception>
public virtual Instance output()
{
if (m_OutputFormat == null)
{
throw new System.NullReferenceException("No output instance format defined");
}
if (m_OutputQueue.empty())
{
return null;
}
Instance result = (Instance) m_OutputQueue.pop();
// Clear out references to old strings occasionally
if (m_OutputQueue.empty() && m_NewBatch)
{
if (m_OutputStringAtts.Length > 0)
{
m_OutputFormat = m_OutputFormat.stringFreeStructure();
}
}
return result;
}
private weka.core.Instances CreateEmptyInstances()
{
var atts = new java.util.ArrayList();
atts.add(new weka.core.Attribute("x"));
atts.add(new weka.core.Attribute("y"));
if (!ckbClassIsNominal.Checked)
{
atts.add(new weka.core.Attribute("v"));
}
else
{
// - nominal
var attVals = new java.util.ArrayList();
//for(int i=0; i<MAXCLASSNUM; ++i)
// attVals.add(i.ToString());
attVals.add("0");
attVals.add("1");
atts.add(new weka.core.Attribute("v", attVals));
}
weka.core.Instances data = new weka.core.Instances("MyRelation", atts, 0);
data.setClassIndex(data.numAttributes() - 1);
return data;
}
/// <summary> Sets the format of the input instances. If the filter is able to
/// determine the output format before seeing any input instances, it
/// does so here. This default implementation clears the output format
/// and output queue, and the new batch flag is set. Overriders should
/// call <code>super.setInputFormat(Instances)</code>
///
/// </summary>
/// <param name="instanceInfo">an Instances object containing the input instance
/// structure (any instances contained in the object are ignored - only the
/// structure is required).
/// </param>
/// <returns> true if the outputFormat may be collected immediately
/// </returns>
/// <exception cref="Exception">if the inputFormat can't be set successfully
/// </exception>
public virtual bool setInputFormat(Instances instanceInfo)
{
m_InputFormat = instanceInfo.stringFreeStructure();
m_InputStringAtts = getStringIndices(instanceInfo);
m_OutputFormat = null;
m_OutputQueue = new Queue();
m_NewBatch = true;
m_FirstBatchDone = false;
return false;
}
/// <summary> Takes string values referenced by an Instance and copies them from a
/// source dataset to a destination dataset. The instance references are
/// updated to be valid for the destination dataset. The instance may have the
/// structure (i.e. number and attribute position) of either dataset (this
/// affects where references are obtained from). The source dataset must
/// have the same structure as the filter input format and the destination
/// must have the same structure as the filter output format.
///
/// </summary>
/// <param name="instance">the instance containing references to strings in the source
/// dataset that will have references updated to be valid for the destination
/// dataset.
/// </param>
/// <param name="instSrcCompat">true if the instance structure is the same as the
/// source, or false if it is the same as the destination
/// </param>
/// <param name="srcDataset">the dataset for which the current instance string
/// references are valid (after any position mapping if needed)
/// </param>
/// <param name="destDataset">the dataset for which the current instance string
/// references need to be inserted (after any position mapping if needed)
/// </param>
protected internal virtual void copyStringValues(Instance instance, bool instSrcCompat, Instances srcDataset, Instances destDataset)
{
copyStringValues(instance, instSrcCompat, srcDataset, m_InputStringAtts, destDataset, m_OutputStringAtts);
}
/// <deprecated> use <code>setInputFormat(Instances)</code> instead.
/// </deprecated>
public virtual bool inputFormat(Instances instanceInfo)
{
return setInputFormat(instanceInfo);
}
/// <summary> Gets an array containing the indices of all string attributes.
///
/// </summary>
/// <param name="insts">the Instances to scan for string attributes.
/// </param>
/// <returns> an array containing the indices of string attributes in
/// the input structure. Will be zero-length if there are no
/// string attributes
/// </returns>
protected internal virtual int[] getStringIndices(Instances insts)
{
// Scan through getting the indices of String attributes
int[] index = new int[insts.numAttributes()];
int indexSize = 0;
for (int i = 0; i < insts.numAttributes(); i++)
{
if (insts.attribute(i).type() == Attribute.STRING)
{
index[indexSize++] = i;
}
}
int[] result = new int[indexSize];
Array.Copy(index, 0, result, 0, indexSize);
return result;
}
public override void buildClassifier(weka.core.Instances insts)
{
m_instances = insts;
}
