public double EuclideanDistance(IrisItem irisITem)
 {
     return Math.Sqrt(Math.Pow(irisITem.PanjangSepal - PanjangSepal, 2) +
         Math.Pow(irisITem.LebarSepal - LebarSepal, 2) +
         Math.Pow(irisITem.PanjangPetal - PanjangPetal, 2) +
         Math.Pow(irisITem.LebarPetal - LebarPetal, 2));
 }
Example #2
0
        public double[] countHiddenValue(IrisItem irisItem, Matrix gausianMatrix, int jumlahCluster)
        {
            double[] hiddenValue = new double[jumlahCluster];
            double[] iris = irisItem.toArray();
            double[,] gausian = gausianMatrix.ToArray();

            for (int i = 0; i < jumlahCluster; i++)
            {
                double temp = 0;
                for (int j = 0; j < iris.Length; j++)
                {
                    temp += (iris[j] * gausianMatrix[i, j]);
                }

                temp = 1 / (1 + Math.Exp(-1 * temp));
                temp = (temp > 0.6) ? 1 : 0;
                hiddenValue[i] = temp;
            }

            return hiddenValue;
        }
Example #3
0
 private void openFileDialog1_FileOk(object sender, CancelEventArgs e)
 {
     listIrisItem.Clear();
     using (System.IO.StreamReader reader = new System.IO.StreamReader(openFileDialog1.FileName)) {
         try {
             while (!reader.EndOfStream)
             {
                 string line = reader.ReadLine();
                 string[] arrayItem = line.Split(new char[1] {','});
                 double temp = 0d;
                 IrisItem item = new IrisItem();
                 item.Nama = arrayItem[4];
                 item.PanjangSepal = (double.TryParse(arrayItem[0], out temp)) ? temp : 0;
                 item.LebarSepal = (double.TryParse(arrayItem[1], out temp)) ? temp : 0;
                 item.PanjangPetal = (double.TryParse(arrayItem[2], out temp)) ? temp : 0;
                 item.LebarPetal = (double.TryParse(arrayItem[3], out temp)) ? temp : 0;
                 item.setTarget();
                 listIrisItem.Add(item);
             }
         }
         catch (Exception ex) {
             General.ShowError(ex.Message);
         }
     }
     txtFilePath.Text = openFileDialog1.FileName;
     DisplayData();
 }
Example #4
0
        public Matrix getBobot(IrisItem item, List<ClusterItem> listCluster)
        {
            double[,] temp = new double[listCluster.Count, 4];
            double[] iris = item.toArray();

            for (int i = 0; i < listCluster.Count; i++)
            {
                for (int j = 0; j < iris.Length; j++)
                {
                    temp[i, j] = getBobot(listCluster[i].toArray(), iris[j], getVariance(listCluster[i].toArray(), listCluster.Count));
                }
            }

            Matrix gausianMatrix = DenseMatrix.OfArray(temp);
            return gausianMatrix;
        }