// <copyright file="ArrayStatistics.Complex.cs" company="Math.NET">
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// Math.NET Numerics, part of the Math.NET Project
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// http://numerics.mathdotnet.com
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// http://github.com/mathnet/mathnet-numerics
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//
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// Copyright (c) 2009-2015 Math.NET
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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// </copyright>
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using Complex = System.Numerics.Complex;
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namespace IStation.Numerics.Statistics
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{
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public static partial class ArrayStatistics
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{
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/// <summary>
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/// Returns the smallest absolute value from the unsorted data array.
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/// Returns NaN if data is empty or any entry is NaN.
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/// </summary>
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/// <param name="data">Sample array, no sorting is assumed.</param>
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public static Complex MinimumMagnitudePhase(Complex[] data)
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{
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if (data.Length == 0)
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{
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return new Complex(double.NaN, double.NaN);
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}
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double minMagnitude = double.PositiveInfinity;
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Complex min = new Complex(double.PositiveInfinity, double.PositiveInfinity);
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for (int i = 0; i < data.Length; i++)
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{
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double magnitude = data[i].Magnitude;
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if (double.IsNaN(magnitude))
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{
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return new Complex(double.NaN, double.NaN);
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}
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if (magnitude < minMagnitude || magnitude == minMagnitude && data[i].Phase < min.Phase)
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{
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minMagnitude = magnitude;
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min = data[i];
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}
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}
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return min;
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}
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/// <summary>
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/// Returns the smallest absolute value from the unsorted data array.
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/// Returns NaN if data is empty or any entry is NaN.
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/// </summary>
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/// <param name="data">Sample array, no sorting is assumed.</param>
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public static Complex32 MinimumMagnitudePhase(Complex32[] data)
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{
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if (data.Length == 0)
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{
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return new Complex32(float.NaN, float.NaN);
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}
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float minMagnitude = float.PositiveInfinity;
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Complex32 min = new Complex32(float.PositiveInfinity, float.PositiveInfinity);
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for (int i = 0; i < data.Length; i++)
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{
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float magnitude = data[i].Magnitude;
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if (float.IsNaN(magnitude))
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{
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return new Complex32(float.NaN, float.NaN);
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}
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if (magnitude < minMagnitude || magnitude == minMagnitude && data[i].Phase < min.Phase)
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{
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minMagnitude = magnitude;
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min = data[i];
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}
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}
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return min;
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}
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/// <summary>
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/// Returns the largest absolute value from the unsorted data array.
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/// Returns NaN if data is empty or any entry is NaN.
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/// </summary>
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/// <param name="data">Sample array, no sorting is assumed.</param>
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public static Complex MaximumMagnitudePhase(Complex[] data)
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{
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if (data.Length == 0)
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{
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return new Complex(double.NaN, double.NaN);
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}
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double maxMagnitude = 0.0d;
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Complex max = Complex.Zero;
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for (int i = 0; i < data.Length; i++)
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{
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double magnitude = data[i].Magnitude;
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if (double.IsNaN(magnitude))
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{
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return new Complex(double.NaN, double.NaN);
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}
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if (magnitude > maxMagnitude || magnitude == maxMagnitude && data[i].Phase > max.Phase)
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{
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maxMagnitude = magnitude;
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max = data[i];
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}
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}
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return max;
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}
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/// <summary>
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/// Returns the largest absolute value from the unsorted data array.
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/// Returns NaN if data is empty or any entry is NaN.
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/// </summary>
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/// <param name="data">Sample array, no sorting is assumed.</param>
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public static Complex32 MaximumMagnitudePhase(Complex32[] data)
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{
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if (data.Length == 0)
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{
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return new Complex32(float.NaN, float.NaN);
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}
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float maxMagnitude = 0.0f;
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Complex32 max = Complex32.Zero;
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for (int i = 0; i < data.Length; i++)
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{
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float magnitude = data[i].Magnitude;
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if (float.IsNaN(magnitude))
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{
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return new Complex32(float.NaN, float.NaN);
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}
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if (magnitude > maxMagnitude || magnitude == maxMagnitude && data[i].Phase > max.Phase)
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{
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maxMagnitude = magnitude;
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max = data[i];
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}
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}
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return max;
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}
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}
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}
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