// Draw a histogram.
private void DrawHistogram(Graphics gr, Color back_color, double[] values, int width, int height)
{
//Color[] Colors = new Color[] { Color.Red, Color.LightGreen, Color.Blue, Color.Pink, Color.Green, Color.LightBlue, Color.Orange, Color.Yellow, Color.Purple };
Color[] Colors = new Color[] { Color.FromArgb(5, 11, 230) };
gr.Clear(back_color);
// Make a transformation to the PictureBox.
DataAnalysis da = new DataAnalysis();
RectangleF data_bounds = new RectangleF(0, 0, values.Length, (float)da.getMaxValue(values));
PointF[] points = { new PointF(0, height), new PointF(width, height), new PointF(0, 0) };
Matrix transformation = new Matrix(data_bounds, points);
gr.Transform = transformation;
// Draw the histogram.
using (Pen thin_pen = new Pen(Color.White, 0))
{
for (int i = 0; i < values.Length; i++)
{
RectangleF rect = new RectangleF(i, 0, 1, (float)values[i]);
using (Brush the_brush = new SolidBrush(Colors[i % Colors.Length]))
{
gr.FillRectangle(the_brush, rect);
gr.DrawRectangle(thin_pen, rect.X, rect.Y, rect.Width, rect.Height);
}
}
}
gr.ResetTransform();
gr.DrawRectangle(Pens.Black, 0, 0, width - 1, height - 1);
}
private void button1_Click(object sender, EventArgs e)
{
#region Making sure user's entry is in correct format
if (textBox1.Text != null && !String.IsNullOrEmpty(textBox1.Text) && !String.IsNullOrWhiteSpace(textBox1.Text) && Regex.IsMatch(textBox1.Text, @"^[-0-9,\s]+$"))
{
#region Preparing user's entry for analysis
string entry = textBox1.Text.Trim().ToString();
string[] arr = entry.Split(',');
double[] doubles = new double[arr.Length];
for (int i = 0; i < arr.Length; i++)
{
doubles[i] = Convert.ToDouble(arr[i].Trim());
}
Array.Sort(doubles);
DataAnalysis da = new DataAnalysis();
#endregion
#region Measure Of Center
meanTxtBox.Text = Math.Round(da.findMean(doubles), 3).ToString();
if (da.findMedian(doubles) != -100.0)
{
MedianTxtBox.Text = da.findMedian(doubles).ToString();
}
else
{
MedianTxtBox.Text = "Error";
}
if (da.findModes(doubles) != null)
{
StringBuilder stringBuilder = new StringBuilder();
double[] modes = da.findModes(doubles);
for (int i = 0; i < modes.Length; i++)
{
stringBuilder.Append(modes[i].ToString());
stringBuilder.Append(',');
}
ModeTxtBox.Text = stringBuilder.ToString().Substring(0, stringBuilder.Length - 1);
}
else
{
ModeTxtBox.Text = "No modes for this array";
}
#endregion
#region Measure Of Spread
standardDeviationTxtBox.Text = Math.Round(da.findStdDeviation(doubles), 3).ToString();
VarianceTxtBox.Text = Math.Round(da.findVariance(doubles), 3).ToString();
#region Five Number Summary
MaxTxtBox.Text = da.getMaxValue(doubles).ToString();
MinTxtBox.Text = da.getMinValue(doubles).ToString();
RangeTxtBox.Text = da.range(doubles).ToString();
double[] fiveNumberSummary = da.findIQR(doubles);
q1TxtBox.Text = fiveNumberSummary[0].ToString();
q2TxtBox.Text = fiveNumberSummary[2].ToString();
iqrTxtBox.Text = fiveNumberSummary[3].ToString();
#endregion
#endregion
}
else
{
Notification toast = new Notification("Data Analysis Tool", "Your entry is not in the correct format", 2, FormAnimator.AnimationMethod.Center, FormAnimator.AnimationDirection.Down);
toast.Show();
}
#endregion
}