using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Mahalanobis_Distance
{
public partial class Form1 : Form
{
private int[,] nums;
private int _count = 0;
int x, y;
public Form1()
{
InitializeComponent();
}
private void listBox2_KeyPress(object sender, KeyPressEventArgs e)
{
if (!Char.IsDigit(e.KeyChar) && e.KeyChar != Char.Parse(","))
e.Handled = true;
}
// Compute and display result
private void btnCompute_Click(object sender, EventArgs e)
{
meanX1.Text = AverageX(nums).ToString();
variance.Text = varianceX(nums).ToString();
// stdDev.Text = stdDeviationOfX;
}
// Calculate standard Deviation Value
private double stdDeviation (double varianceX)
{
double stdDevX = Math.Sqrt(varianceX);
return stdDevX;
}
// Calculate Variance Value
private double varianceX(int[,] nums)
{
int NumMatrix =0;
double varX =0;
double sumSquare=0;
// Get the Means@Average of X values
double avgX = AverageX(nums);
// Declare the total Matrix
NumMatrix = nums.Length;
// Calculate the variance
for (int i = 0; i <= NumMatrix; i++)
{
sumSquare += Math.Pow((double)nums[i, 0]- avgX, 2);
}
varX= sumSquare/NumMatrix;
return varX;
}
// Average value of X matrik
private double AverageX(int[,] nums)
{
double avgValueX = 0;
double sumValueX = 0;
for (int i = 0; i <=nums.GetUpperBound(0); i++)
{
// Total Value Matrix X
sumValueX += (double)nums[i, 0];
}
avgValueX = sumValueX / (nums.GetUpperBound(0) + 1);
return avgValueX;
}
// insert input matrix example (7,8) in listBox and stored in 2-dimensional array
private void btnAdd_Click(object sender, EventArgs e)
{
nums = new int[listBox2.Items.Count, 2];
for (int i = 0; i < this.listBox2.Items.Count; i++)
{
if (_count < 20 && this.listBox2.Items[i].ToString() != "" && this.listBox2.Items[i].ToString().Contains(","))
{
string t = this.listBox2.Items[i].ToString();
string sx = t.Substring(0, t.IndexOf(","));
Int32.TryParse(sx, out x);
t = t.Substring(t.IndexOf(",") + 1);
Int32.TryParse(t, out y);
this.nums[_count, 0] = x;
this.nums[_count, 1] = y;
_count++;
}
}
}
// Show input matrix in ListBox2
private void showMatrixList(int[,] nums)
{
for (int i = 0; i < listBox2.Items.Count; i++)
{
this.listBox1.Items.Add("X:" + x.ToString() + "; Y:" + y.ToString());
}
}
}
}
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