private static void cardioid_cdf_test()
//****************************************************************************80
//
// Purpose:
//
// CARDIOID_CDF_TEST tests CARDIOID_CDF, CARDIOID_CDF_INV, CARDIOID_PDF.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 31 July 2005
//
// Author:
//
// John Burkardt
//
{
const double a = 0.0;
const double b = 0.25;
int i;
int seed = 123456789;
Console.WriteLine("");
Console.WriteLine("CARDIOID_CDF_TEST");
Console.WriteLine(" CARDIOID_CDF evaluates the Cardioid CDF;");
Console.WriteLine(" CARDIOID_CDF_INV inverts the Cardioid CDF.");
Console.WriteLine(" CARDIOID_PDF evaluates the Cardioid PDF;");
Console.WriteLine("");
Console.WriteLine(" PDF parameter A = " + a + "");
Console.WriteLine(" PDF parameter B = " + b + "");
if (!Cardioid.cardioid_check(a, b))
{
Console.WriteLine("");
Console.WriteLine("CARDIOID_CDF_TEST - Fatal error!");
Console.WriteLine(" The parameters are not legal.");
return;
}
Console.WriteLine("");
Console.WriteLine(" X PDF CDF CDF_INV");
Console.WriteLine("");
for (i = 0; i < 10; i++)
{
double x = Cardioid.cardioid_sample(a, b, ref seed);
double pdf = Cardioid.cardioid_pdf(x, a, b);
double cdf = Cardioid.cardioid_cdf(x, a, b);
double x2 = Cardioid.cardioid_cdf_inv(cdf, a, b);
Console.WriteLine(" " + x.ToString(CultureInfo.InvariantCulture).PadLeft(12)
+ " " + pdf.ToString(CultureInfo.InvariantCulture).PadLeft(12)
+ " " + cdf.ToString(CultureInfo.InvariantCulture).PadLeft(12)
+ " " + x2.ToString(CultureInfo.InvariantCulture).PadLeft(12) + "");
}
}
private static void cardioid_sample_test()
//****************************************************************************80
//
// Purpose:
//
// CARDIOID_SAMPLE_TEST tests CARDIOID_MEAN, CARDIOID_SAMPLE, CARDIOID_VARIANCE.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 26 August 2006
//
// Author:
//
// John Burkardt
//
{
const int SAMPLE_NUM = 1000;
const double a = 0.0;
const double b = 0.25;
int i;
int seed = 123456789;
double[] x = new double [SAMPLE_NUM];
Console.WriteLine("");
Console.WriteLine("CARDIOID_SAMPLE_TEST");
Console.WriteLine(" CARDIOID_MEAN computes the Cardioid mean;");
Console.WriteLine(" CARDIOID_SAMPLE samples the Cardioid distribution;");
Console.WriteLine(" CARDIOID_VARIANCE computes the Cardioid variance.");
Console.WriteLine("");
Console.WriteLine(" PDF parameter A = " + a + "");
Console.WriteLine(" PDF parameter B = " + b + "");
if (!Cardioid.cardioid_check(a, b))
{
Console.WriteLine("");
Console.WriteLine("CARDIOID_SAMPLE_TEST - Fatal error!");
Console.WriteLine(" The parameters are not legal.");
return;
}
double mean = Cardioid.cardioid_mean(a, b);
double variance = Cardioid.cardioid_variance(a, b);
Console.WriteLine("");
Console.WriteLine(" PDF mean = " + mean + "");
Console.WriteLine(" PDF variance = " + variance + "");
for (i = 0; i < SAMPLE_NUM; i++)
{
x[i] = Cardioid.cardioid_sample(a, b, ref seed);
}
mean = typeMethods.r8vec_mean(SAMPLE_NUM, x);
variance = typeMethods.r8vec_variance(SAMPLE_NUM, x);
double xmax = typeMethods.r8vec_max(SAMPLE_NUM, x);
double xmin = typeMethods.r8vec_min(SAMPLE_NUM, x);
Console.WriteLine("");
Console.WriteLine(" Sample size = " + SAMPLE_NUM + "");
Console.WriteLine(" Sample mean = " + mean + "");
Console.WriteLine(" Sample variance = " + variance + "");
Console.WriteLine(" Sample maximum = " + xmax + "");
Console.WriteLine(" Sample minimum = " + xmin + "");
}