private static void log_normal_cdf_test() //****************************************************************************80 // // Purpose: // // LOG_NORMAL_CDF_TEST tests LOG_NORMAL_CDF. // // Licensing: // // This code is distributed under the GNU LGPL license. // // Modified: // // 27 February 2007 // // Author: // // John Burkardt // { int i; int seed = 123456789; Console.WriteLine(""); Console.WriteLine("LOG_NORMAL_CDF_TEST"); Console.WriteLine(" LOG_NORMAL_CDF evaluates the Log Normal CDF;"); Console.WriteLine(" LOG_NORMAL_CDF_INV inverts the Log Normal CDF."); Console.WriteLine(" LOG_NORMAL_PDF evaluates the Log Normal PDF;"); const double a = 10.0; const double b = 2.25; Console.WriteLine(""); Console.WriteLine(" PDF parameter A = " + a + ""); Console.WriteLine(" PDF parameter B = " + b + ""); if (!LogNormal.log_normal_check(a, b)) { Console.WriteLine(""); Console.WriteLine("LOG_NORMAL_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 = 1; i <= 10; i++) { double x = LogNormal.log_normal_sample(a, b, ref seed); double pdf = LogNormal.log_normal_pdf(x, a, b); double cdf = LogNormal.log_normal_cdf(x, a, b); double x2 = LogNormal.log_normal_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) + ""); } }