www.pudn.com > neuroocr_src.zip > Histogram.cs

// AForge Math Library 
// 
// Copyright © Andrew Kirillov, 2005 
// andrew.kirillov@gmail.com 
// 
 
namespace AForge.Math 
{ 
	using System; 
 
	/// 
 
	/// Histogram 
	/// 
 
	public class Histogram 
	{ 
		private int[]	values; 
		private double	mean = 0; 
		private double	stdDev = 0; 
		private int		median = 0; 
		private int		min; 
		private int		max; 
 
		// Get values 
		public int[] Values 
		{ 
			get { return values; } 
		} 
		// Get mean 
		public double Mean 
		{ 
			get { return mean; } 
		} 
		// Get standard deviation 
		public double StdDev 
		{ 
			get { return stdDev; } 
		} 
		// Get median 
		public int Median 
		{ 
			get { return median; } 
		} 
		// Get min value 
		public int Min 
		{ 
			get { return min; } 
		} 
		// Get max value 
		public int Max 
		{ 
			get { return max; } 
		} 
 
		// Constructor 
		public Histogram(int[] values) 
		{ 
			this.values = values; 
 
			int i, n = values.Length; 
 
			max = 0; 
			min = n; 
 
			// calculate min and max 
			for (i = 0; i < n; i++) 
			{ 
				if (values[i] != 0) 
				{ 
					// max 
					if (i > max) 
						max = i; 
					// min 
					if (i < min) 
						min = i; 
				} 
			} 
 
			mean	= Statistics.Mean(values); 
			stdDev	= Statistics.StdDev(values); 
			median	= Statistics.Median(values); 
		} 
 
		// Get range around median containing specified 
		// percentile of values 
		public Range GetRange(double percent) 
		{ 
			return Statistics.GetRange(values, percent); 
		} 
	} 
}