function prob_test145 ( ) %*****************************************************************************80 % %% TEST145 tests TRIANGULAR_CDF, TRIANGULAR_CDF_INV, TRIANGULAR_PDF; % % Licensing: % % This code is distributed under the GNU LGPL license. % % Modified: % % 14 February 2003 % % Author: % % John Burkardt % fprintf ( 1, '\n' ); fprintf ( 1, 'TEST145\n' ); fprintf ( 1, ' For the Triangular PDF:\n' ); fprintf ( 1, ' TRIANGULAR_CDF evaluates the CDF;\n' ); fprintf ( 1, ' TRIANGULAR_CDF_INV inverts the CDF.\n' ); fprintf ( 1, ' TRIANGULAR_PDF evaluates the PDF;\n' ); a = 1.0; b = 10.0; check = triangular_check ( a, b ); if ( ~check ); fprintf ( 1, '\n' ); fprintf ( 1, 'TEST145 - Fatal error!\n' ); fprintf ( 1, ' The parameters are not legal.\n' ); return end fprintf ( 1, '\n' ); fprintf ( 1, ' PDF parameter A = %14f\n', a ); fprintf ( 1, ' PDF parameter B = %14f\n', b ); seed = 123456789; fprintf ( 1, '\n' ); fprintf ( 1, ' X PDF CDF CDF_INV\n' ); fprintf ( 1, '\n' ); for i = 1 : 10 [ x, seed ] = triangular_sample ( a, b, seed ); pdf = triangular_pdf ( x, a, b ); cdf = triangular_cdf ( x, a, b ); x2 = triangular_cdf_inv ( cdf, a, b ); fprintf ( 1, ' %14f %14f %14f %14f\n', x, pdf, cdf, x2 ); end return end