/// <summary>
/// Generates a random vector of observations from the current distribution.
/// </summary>
///
/// <param name="samples">The number of samples to generate.</param>
/// <param name="result">The location where to store the samples.</param>
/// <param name="source">The random number generator to use as a source of randomness.
/// Default is to use <see cref="Accord.Math.Random.Generator.Random"/>.</param>
///
/// <returns>
/// A random vector of observations drawn from this distribution.
/// </returns>
///
public override int[] Generate(int samples, int[] result, Random source)
{
GeometricDistribution.Random(p, samples, result, source);
for (int i = 0; i < samples; i++)
{
result[i] *= Math.Sign(source.NextDouble() - 0.5);
}
return(result);
}
/// <summary>
/// Generates a random vector of observations from the current distribution.
/// </summary>
/// <param name="samples">The number of samples to generate.</param>
/// <param name="result">The location where to store the samples.</param>
/// <returns>
/// A random vector of observations drawn from this distribution.
/// </returns>
public override int[] Generate(int samples, int[] result)
{
GeometricDistribution.Random(p, samples, result);
var rand = Accord.Math.Random.Generator.Random;
for (int i = 0; i < samples; i++)
{
result[i] *= Math.Sign(rand.NextDouble() - 0.5);
}
return(result);
}
/// <summary>
/// Generates a random observation from the current distribution.
/// </summary>
///
/// <param name="source">The random number generator to use as a source of randomness.
/// Default is to use <see cref="Accord.Math.Random.Generator.Random"/>.</param>
///
/// <returns>
/// A random observations drawn from this distribution.
/// </returns>
///
public override int Generate(Random source)
{
double u = source.NextDouble();
return(Math.Sign(u - 0.5) * (int)GeometricDistribution.Random(p, source));
}
/// <summary>
/// Generates a random observation from the current distribution.
/// </summary>
/// <returns>
/// A random observations drawn from this distribution.
/// </returns>
public override int Generate()
{
double u = Accord.Math.Random.Generator.Random.NextDouble();
return(Math.Sign(u - 0.5) * (int)GeometricDistribution.Random(p));
}
