/// <summary>
/// Разделяет данные на два набора
/// </summary>
/// <param name="k">Процент разбивания</param>
/// <param name="train"></param>
/// <param name="val"></param>
public void SplitTrainVal(double k, out ArrDataEnumerator data1, out ArrDataEnumerator data2)
{
List <double[, , ]> fake_data = new List <double[, , ]>(data);
List <double[, , ]> fake_out = new List <double[, , ]>(output);
Random r = new Random();
List <double[, , ]> d1 = new List <double[, , ]>();
List <double[, , ]> d2 = new List <double[, , ]>();
List <double[, , ]> o1 = new List <double[, , ]>();
List <double[, , ]> o2 = new List <double[, , ]>();
int pos = (int)(data.Count * k);
for (int i = 0; i < pos; i++)
{
int el = r.Next(fake_data.Count);
d1.Add(fake_data[el]);
o1.Add(fake_out[el]);
fake_data.RemoveAt(el);
fake_out.RemoveAt(el);
}
d2.AddRange(fake_data);
o2.AddRange(fake_out);
//for(int i = pos;i < data.Count;i++)
//{
// d2.Add(fake_data[i]);
// o2.Add(fake_data[i]);
//}
data1 = new ArrDataEnumerator(d1, o1);
data2 = new ArrDataEnumerator(d2, o2);
}
public DataCategoryVisualisation(ArrDataEnumerator enumerator, int channel1, int channel2, int size, string[] classes)
{
InitializeComponent();
this.enumerator = enumerator;
this.channel1 = channel1;
this.channel2 = channel2;
double min1 = double.MaxValue;
double min2 = double.MaxValue;
double max1 = double.MinValue;
double max2 = double.MinValue;
double mean1 = 0;
double mean2 = 0;
int count = 0;
enumerator.ProcessChannel(0, 0, channel1, v =>
{
min1 = Math.Min(min1, v);
max1 = Math.Max(max1, v);
mean1 += v;
count++;
});
mean1 /= count;
enumerator.ProcessChannel(0, 0, channel2, v =>
{
min2 = Math.Min(min2, v);
max2 = Math.Max(max2, v);
mean2 += v;
});
mean2 /= count;
Bitmap map = new Bitmap(size, size);
Graphics gr = Graphics.FromImage(map);
Brush[] brushes = new Brush[] { Brushes.Black, Brushes.Red, Brushes.Gray, Brushes.Green, Brushes.Yellow, Brushes.Pink, Brushes.Black, Brushes.Aqua, Brushes.Purple, Brushes.Wheat, Brushes.Brown, Brushes.Chocolate };
List <int> xs = new List <int>();
List <int> ys = new List <int>();
List <int> brushes_list = new List <int>();
enumerator.Process2Channel(0, 0, channel1, 0, 0, channel2, (v1, v2, c, y, x) =>
{
//int x1 = (int)((v1 - min1) / (max1 - min1) * size);
//int y1 = (int)((v2 - min2) / (max2 - min2) * size);
//gr.FillEllipse(brushes[x], x1 - 5, y1 - 5, 10, 10);
xs.Add((int)((v1 - min1) / (max1 - min1) * size));
ys.Add((int)((v2 - min2) / (max2 - min2) * size));
brushes_list.Add(x);
});
Random r = new Random();
while (xs.Count > 0)
{
int pos = r.Next(xs.Count);
gr.FillEllipse(brushes[brushes_list[pos]], xs[pos] - 5, ys[pos] - 5, 10, 10);
xs.RemoveAt(pos);
ys.RemoveAt(pos);
brushes_list.RemoveAt(pos);
}
float shift = 0;
for (int i = 0; i < classes.Length; i++)
{
gr.DrawString(classes[i], Font, Brushes.Black, 0, shift);
var s = gr.MeasureString(classes[i], Font);
gr.DrawRectangle(new Pen(brushes[i], 3), -1, shift, s.Width, s.Height);
shift += s.Height + lineDistance;
}
pictureBox1.Image = map;
}