init commit

2025-10-09 09:57:24 +09:00
commit 4d551bd74f
6636 changed files with 1218703 additions and 0 deletions
--- a/output/Libraries/AForge.Math/AForge/Math/Statistics.cs
+++ b/output/Libraries/AForge.Math/AForge/Math/Statistics.cs
@@ -0,0 +1,142 @@
+using System;
+
+namespace AForge.Math;
+
+public static class Statistics
+{
+	public static double Mean(int[] values)
+	{
+		long num = 0L;
+		double num2 = 0.0;
+		int i = 0;
+		for (int num3 = values.Length; i < num3; i++)
+		{
+			int num4 = values[i];
+			num2 += (double)(i * num4);
+			num += num4;
+		}
+		if (num != 0)
+		{
+			return num2 / (double)num;
+		}
+		return 0.0;
+	}
+
+	public static double StdDev(int[] values)
+	{
+		return StdDev(values, Mean(values));
+	}
+
+	public static double StdDev(int[] values, double mean)
+	{
+		double num = 0.0;
+		int num2 = 0;
+		int i = 0;
+		for (int num3 = values.Length; i < num3; i++)
+		{
+			int num4 = values[i];
+			double num5 = (double)i - mean;
+			num += num5 * num5 * (double)num4;
+			num2 += num4;
+		}
+		if (num2 != 0)
+		{
+			return System.Math.Sqrt(num / (double)num2);
+		}
+		return 0.0;
+	}
+
+	public static int Median(int[] values)
+	{
+		int num = 0;
+		int num2 = values.Length;
+		for (int i = 0; i < num2; i++)
+		{
+			num += values[i];
+		}
+		int num3 = num / 2;
+		int j = 0;
+		int num4 = 0;
+		for (; j < num2; j++)
+		{
+			num4 += values[j];
+			if (num4 >= num3)
+			{
+				break;
+			}
+		}
+		return j;
+	}
+
+	public static IntRange GetRange(int[] values, double percent)
+	{
+		int num = 0;
+		int num2 = values.Length;
+		for (int i = 0; i < num2; i++)
+		{
+			num += values[i];
+		}
+		int num3 = (int)((double)num * (percent + (1.0 - percent) / 2.0));
+		int j = 0;
+		int num4 = num;
+		for (; j < num2; j++)
+		{
+			num4 -= values[j];
+			if (num4 < num3)
+			{
+				break;
+			}
+		}
+		int num5 = num2 - 1;
+		num4 = num;
+		while (num5 >= 0)
+		{
+			num4 -= values[num5];
+			if (num4 < num3)
+			{
+				break;
+			}
+			num5--;
+		}
+		return new IntRange(j, num5);
+	}
+
+	public static double Entropy(int[] values)
+	{
+		int num = values.Length;
+		int num2 = 0;
+		double num3 = 0.0;
+		for (int i = 0; i < num; i++)
+		{
+			num2 += values[i];
+		}
+		if (num2 != 0)
+		{
+			for (int j = 0; j < num; j++)
+			{
+				double num4 = (double)values[j] / (double)num2;
+				if (num4 != 0.0)
+				{
+					num3 += (0.0 - num4) * System.Math.Log(num4, 2.0);
+				}
+			}
+		}
+		return num3;
+	}
+
+	public static int Mode(int[] values)
+	{
+		int result = 0;
+		int num = 0;
+		int i = 0;
+		for (int num2 = values.Length; i < num2; i++)
+		{
+			if (values[i] > num)
+			{
+				num = values[i];
+				result = i;
+			}
+		}
+		return result;
+	}
+}