random_data_test

random_data_test, a FORTRAN77 code which calls random_data(), which uses a random number generator (RNG) to sample points for various probability distributions, spatial dimensions, and geometries, including the M-dimensional cube, ellipsoid, simplex and sphere.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

random_data, a FORTRAN77 code which uses a random number generator (RNG) to sample points for various probability distributions, spatial dimensions, and geometries, including the M-dimensional cube, ellipsoid, simplex and sphere.

Source Code:

• random_data_test.f, the sample calling program.
• random_data_test.sh, commands to compile, link and run the sample calling program.
• random_data_test.txt, output from the sample calling program.

The sample calling program generates sets of points:

• bad_in_tetrahedron.txt, points in the unit tetrahedron, not uniformly chosen.
• bad_in_triangle.txt, points in the unit triangle, not uniformly chosen.
• brownian.txt, Brownian motion.
• brownian.png
• grid_in_cube01.txt, grid points in the unit hypercube, with CENTER = 1.
• grid_in_cube01.png
• halton_in_circle01_accept.txt, Halton points in the unit circle by acceptance/rejection.
• halton_in_circle01_accept.png
• halton_in_circle01_map.txt, Halton points in the unit circle by direct mapping.
• halton_in_circle01_map.png
• halton_in_cube01.txt, Halton points in the unit hypercube.
• halton_in_cube01.png
• hammersley_in_cube01.txt, Hammersley points in the unit hypercube.
• hammersley_in_cube01.png
• normal.txt, normal points, with strong correlation between the two coordinates.
• normal.png
• normal_circular.txt, circular normal points.
• normal_circular.png
• normal_simple.txt, normal points in which there is no correlation between the X and Y coordinates.
• normal_simple.png
• polygon_vertices.txt, the vertices of a polygon to be filled by random points.
• polygon_vertices.png,
• uniform_in_annulus.txt, uniform random points in an annulus, mappint.
• uniform_in_annulus.png,
• uniform_in_annulus_accept.txt, uniform random points in an annulus, acceptance/rejection.
• uniform_in_annulus_accept.png,
• uniform_in_annulus_sector.txt, uniform random points in an annulus sector, mapping.
• uniform_in_annulus_sector.png,
• uniform_in_cube01.txt, uniform random points in the unit hypercube.
• uniform_in_cube01.png,
• uniform_in_circle01_map.txt, uniform random points in the unit circle.
• uniform_in_circle01_map.png,
• uniform_in_ellipsoid_map.txt, uniform random points in an ellipsoid.
• uniform_in_ellipsoid_map.png,
• uniform_in_parallelogram_map.txt, uniform random points in a parallelogram.
• uniform_in_parallelogram_map.png,
• uniform_in_polygon_map.txt, uniform random points in a polygon (a star, in this case).
• uniform_in_polygon_map.png,
• uniform_in_sector_map.txt, uniform random points in a circular sector.
• uniform_in_sector_map.png,
• uniform_in_simplex01_map.txt, uniform random points in the unit simplex.
• uniform_in_simplex01_map.png,
• uniform_in_sphere01_map.txt, uniform random points in the unit sphere.
• uniform_in_sphere01_map.png,
• uniform_in_tetrahedron.txt, uniform random points in an arbitrary tetrahedron.
• uniform_in_triangle_map1.txt, uniform random points in an arbitrary triangle, Turk method 1.
• uniform_in_triangle_map1.png,
• uniform_in_triangle_map2.txt, uniform random points in an arbitrary triangle, Turk method 2.
• uniform_in_triangle_map2.png,
• uniform_in_triangle01_map.txt, uniform random points in the unit triangle.
• uniform_in_triangle01_map.png,
• uniform_on_cube01.txt, uniform random points on the unit cube.
• uniform_on_ellipsoid_map.txt, uniform random points on an ellipsoid.
• uniform_on_ellipsoid_map.png,
• uniform_on_hemisphere01_phong.txt, uniform random points on a hemisphere, Phong distribution.
• uniform_on_simplex01_map.txt, uniform random points on the unit simplex.
• uniform_on_simplex01_map.png,
• uniform_on_sphere01_map.txt, uniform random points on the unit sphere in 2D.
• uniform_on_sphere01_map.png,
• uniform_on_sphere01_patch_tp.txt, uniform random points on an TP (theta,phi) "patch" of the unit sphere in 3D.
• uniform_on_sphere01_patch_tp.png
• uniform_on_sphere01_patch_xyz.txt, uniform random points on an XYZ "patch" of the unit sphere in 3D.
• uniform_on_sphere01_patch_xyz.png
• uniform_on_sphere01_triangle_xyz.txt, uniform random points on a spherical triangle of the unit sphere in 3D using XYZ coordinates.
• uniform_walk.txt, points on a uniform random walk.
• uniform_walk.png,