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GH-628: Inject other Random.Generators (like Mersenne Twister)
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226 changes: 128 additions & 98 deletions
226
Sources/Accord.Statistics/Distributions/DistributionBase.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,98 +1,128 @@ | ||
| // Accord Statistics Library | ||
| // The Accord.NET Framework | ||
| // http://accord-framework.net | ||
| // | ||
| // Copyright © César Souza, 2009-2017 | ||
| // cesarsouza at gmail.com | ||
| // | ||
| // This library is free software; you can redistribute it and/or | ||
| // modify it under the terms of the GNU Lesser General Public | ||
| // License as published by the Free Software Foundation; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
| // | ||
| // This library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| // Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public | ||
| // License along with this library; if not, write to the Free Software | ||
| // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| // | ||
|
|
||
| namespace Accord.Statistics.Distributions | ||
| { | ||
| using System; | ||
|
|
||
| /// <summary> | ||
| /// Base class for statistical distribution implementations. | ||
| /// </summary> | ||
| /// | ||
| [Serializable] | ||
| public abstract class DistributionBase : IFormattable | ||
| { | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public override string ToString() | ||
| { | ||
| return ToString(null, null); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public string ToString(IFormatProvider formatProvider) | ||
| { | ||
| return ToString(null, formatProvider); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public string ToString(string format) | ||
| { | ||
| return ToString(format, null); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String" /> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="format">The format.</param> | ||
| /// <param name="formatProvider">The format provider.</param> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String" /> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public abstract string ToString(string format, IFormatProvider formatProvider); | ||
|
|
||
| /// <summary> | ||
| /// Creates a new object that is a copy of the current instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A new object that is a copy of this instance. | ||
| /// </returns> | ||
| /// | ||
| public abstract object Clone(); | ||
|
|
||
| } | ||
| } | ||
| // Accord Statistics Library | ||
| // The Accord.NET Framework | ||
| // http://accord-framework.net | ||
| // | ||
| // Copyright © César Souza, 2009-2017 | ||
| // cesarsouza at gmail.com | ||
| // | ||
| // This library is free software; you can redistribute it and/or | ||
| // modify it under the terms of the GNU Lesser General Public | ||
| // License as published by the Free Software Foundation; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
| // | ||
| // This library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| // Lesser General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Lesser General Public | ||
| // License along with this library; if not, write to the Free Software | ||
| // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| // | ||
|
|
||
| namespace Accord.Statistics.Distributions | ||
| { | ||
| using Accord.Math.Random; | ||
| using System; | ||
| using System.Threading; | ||
|
|
||
| /// <summary> | ||
| /// Base class for statistical distribution implementations. | ||
| /// </summary> | ||
| /// | ||
| [Serializable] | ||
| public abstract class DistributionBase : IFormattable | ||
| { | ||
| /* | ||
| public DistributionBase() | ||
| { | ||
| RandomSource = () => Accord.Math.Random.Generator.Random; | ||
| } | ||
| /// <summary> | ||
| /// Gets or sets a factory method to create random number generators used | ||
| /// within the distribution. | ||
| /// </summary> | ||
| /// | ||
| /// <remarks> | ||
| /// <para> | ||
| /// As a recommendation, any provided factory method should create a new generator | ||
| /// on each call instead of reusing the same one. The reason is that not all | ||
| /// generators can be used across multiple threads, and some distributions will | ||
| /// call this method from different threads expecting different objects. Ignore | ||
| /// this remark only if your generators are thread safe or thread local.</para> | ||
| /// | ||
| /// <para> | ||
| /// By default, this method will return instances of the framework's main random generator. | ||
| /// The property that gives access to the framework's main random generator | ||
| /// (<see cref="Accord.Math.Random.Generator.Random"/>) provides a different generator for | ||
| /// each thread (as it uses ThreadLocal).</para> | ||
| /// </remarks> | ||
| /// | ||
| public Func<Random> RandomSource { get; set; } | ||
| */ | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public override string ToString() | ||
| { | ||
| return ToString(null, null); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public string ToString(IFormatProvider formatProvider) | ||
| { | ||
| return ToString(null, formatProvider); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String"/> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String"/> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public string ToString(string format) | ||
| { | ||
| return ToString(format, null); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Returns a <see cref="System.String" /> that represents this instance. | ||
| /// </summary> | ||
| /// | ||
| /// <param name="format">The format.</param> | ||
| /// <param name="formatProvider">The format provider.</param> | ||
| /// | ||
| /// <returns> | ||
| /// A <see cref="System.String" /> that represents this instance. | ||
| /// </returns> | ||
| /// | ||
| public abstract string ToString(string format, IFormatProvider formatProvider); | ||
|
|
||
| /// <summary> | ||
| /// Creates a new object that is a copy of the current instance. | ||
| /// </summary> | ||
| /// | ||
| /// <returns> | ||
| /// A new object that is a copy of this instance. | ||
| /// </returns> | ||
| /// | ||
| public abstract object Clone(); | ||
|
|
||
| } | ||
| } |
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