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2021-04-20Do not return volume or integral estimate.Arun Isaac
We are already passing in the true volume or integral, and checking that the estimate is within the required tolerance. What is the point in returning the estimate to the caller. * include/extent-sampling.h (volume, integral): Return nothing. * src/extent-sampling.sc (volume, integral): Return nothing. * scm/nsmc/wrap.scm (volume, integral): Accept no return value from C function.
2021-04-20Return the first accurate estimate.Arun Isaac
* include/extent-sampling.h (volume_window): Delete function. * src/extent-sampling.sc (integral, volume): Return the first accurate estimate. (volume-window): Delete function. * scm/nsmc/wrap.scm (volume-window): Delete function.
2021-04-08Wrap volume-importance.Arun Isaac
* scm/nsmc/wrap.scm (volume-importance): New function.
2021-04-08Rename volume-experiment to volume-importance.Arun Isaac
* src/extent-sampling.sc, include/extent-sampling.h (volume-experiment): Rename to volume-importance.
2021-04-08Wrap gsl_sf_lngamma.Arun Isaac
* scm/nsmc/wrap.scm (log-gamma): New function.
2021-03-19Demonstrate cone sampling with rejection sampling too.Arun Isaac
* contrib/cone-vector.py (sample_code): Demonstrate cone sampling with rejection sampling too.
2021-03-19Implement rejection sampling based cone sampling.Arun Isaac
* contrib/cone-vector.py: Import log. (random_planar_angle_pdf, random_vector_on_spherical_cap_pdf): New functions.
2021-03-19Factor out random planar angle generation.Arun Isaac
* contrib/cone-vector.py (random_planar_angle_cdf, random_vector_on_disk): New functions. (random_vector_on_spherical_cap): Rename to random_vector_on_spherical_cap_cdf. Call random_planar_angle_cdf and random_vector_on_disk. (sample_code): Call random_vector_on_spherical_cap_cdf instead of random_vector_on_spherical_cap.
2021-03-16Deal in solid angle fractions, not absolute solid angles.Arun Isaac
* src/extent-sampling.sc (volume-cone): Use solid-angle-fraction->planar-angle instead of solid-angle->planar-angle. * src/nd-random.sc (planar-angle->solid-angle): Rename to planar-angle->solid-angle-fraction and return a solid angle fraction. (solid-angle->planar-angle): Rename to solid-angle-fraction->planar-angle and accept a solid angle fraction. (hollow-cone-random-vector): Use planar-angle->solid-angle-fraction instead of planar-angle->solid-angle. (beta-inc-unnormalized, incomplete-wallis-integral): Delete functions. * include/nd-random.h (planar_angle_to_solid_angle): Rename to planar_angle_to_solid_angle_fraction. (solid_angle_to_planar_angle): Rename to solid_angle_fraction_to_planar_angle. * scm/nsmc/wrap.scm (planar-angle->solid-angle): Rename to planar-angle->solid-angle-fraction.
2021-03-16Fix edge case when vectors around the nth canonical axis are required.Arun Isaac
* src/nd-random.sc (rotate-from-nth-canonical): Do nothing when vectors around the nth canonical axis are required.
2021-03-16Implement simplified cone sampling algorithm.Arun Isaac
* src/nd-random.sc (hollow-cone-random-vector): Implement simplified algorithm that directly samples the surface of the sphere instead of sampling a disk and projecting it onto the surface.
2021-03-15Put sample code in separate function.Arun Isaac
* contrib/cone-vector.py: Call sample_code when run as a script. (sample_code): New function.
2021-03-15Remove unused imports.Arun Isaac
* contrib/cone-vector.py: Don't import zeros from numpy and gamma from scipy.special.
2021-03-15Add function docstrings.Arun Isaac
* contrib/cone-vector.py (random_vector_on_sphere, planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle, rotate_from_nth_canonical, random_vector_on_spherical_cap): Add docstrings.
2021-03-15Remove space between function name and bracket.Arun Isaac
* contrib/cone-vector.py (random_vector_on_sphere, planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle, rotate_from_nth_canonical, random_vector_on_spherical_cap): Remove space between function name and bracket.
2021-03-15Implement simplified cone sampling algorithm.Arun Isaac
* contrib/cone-vector.py: Don't import tan. (random_vector_on_spherical_cap): Implement simplified algorithm that directly samples the surface of the sphere instead of sampling a disk and projecting it onto the surface.
2021-03-15Vectorize functions.Arun Isaac
* contrib/cone-vector.py: Import where. (planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle): Vectorize functions.
2021-03-15Fix solid_angle_fraction2planar_angle for solid_angle_fraction > 1/2.Arun Isaac
* contrib/cone-vector.py (solid_angle_fraction2planar_angle): Fix for solid_angle_fraction > 1/2.
2021-03-10Do not concatenate numpy arrays.Arun Isaac
* contrib/cone-vector.py: Import empty. Don't import concatenate. (random_vector_on_spherical_cap): Build random vector without concatenation.
2021-03-10Remove surface area computation.Arun Isaac
Now that we are computing solid angle fractions, there is no need to compute the total surface area of the sphere. * contrib/cone-vector.py (surface_area_of_ball): Delete function. (solid_angle_fraction2planar_angle): Remove surface area computation.
2021-03-10Add Python implementation of cone sampling.Arun Isaac
* contrib/cone-vector.py: New file.
2021-02-26Add copyright and license headers.Arun Isaac
* scm/nsmc/load-libs.scm.in, scm/nsmc/wrap.scm: Add copyright and license headers.
2021-02-26List papers as a bulleted list.Arun Isaac
* README.org: List papers as a bulleted list.
2021-02-26Add guix environment instructions to guix.scm.Arun Isaac
* guix.scm: Add guix environment instructions.
2021-02-26Add copyright and license headers for all files.Arun Isaac
* include/extent-sampling.h, include/gaussian-nd-random.h, include/integrands.h, include/nd-random.h, include/oracles.h, include/utils.h, src/extent-sampling.sc, src/gaussian-nd-random.sc, src/integrands.sc, src/macros/macros.sc, src/nd-random.sc, src/oracles.sc, src/utils.sc, CMakeLists.txt, pre-inst-env.in: Add copyright and license headers.
2021-02-26Add a copy of the GPLv3.Arun Isaac
* COPYING: New file.
2021-02-26Add explicit citation information in README.Arun Isaac
* README.org (Citing): New section.
2021-02-26Refer to papers in the opening of the README.Arun Isaac
* README.org: Refer to papers at the opening.
2021-02-26Change title of README.Arun Isaac
* README.org (TITLE): Set to "n-sphere Monte Carlo Method".
2021-02-26Document running of examples in README.Arun Isaac
* README.org (Usage): New section.
2021-02-26Add hollow cone vector generation example.Arun Isaac
* examples/generate-hollow-cone-vector.c: New file.
2021-02-26Add cone vector generation example.Arun Isaac
* examples/generate-cone-vector.c: New file.
2021-02-26Set CPATH and LIBRARY_PATH in pre-inst-env wrapper.Arun Isaac
This is so that someone compiling and running C programs against libnsmc can do so easily. * pre-inst-env.in: Set CPATH and LIBRARY_PATH.
2021-02-26Rename subsampling-random-vector to cone-random-vector.Arun Isaac
* scm/nsmc/wrap.scm: (subsampling-random-vector): Rename to cone-random-vector. * src/nd-random.sc (subsampling-random-vector): Rename to cone-random-vector. * include/nd-random.h (subsampling_random_vector): Rename to cone_random_vector.
2021-02-26Rename project to nsmc.Arun Isaac
2021-02-26Advertise guix environment in README.Arun Isaac
* README.org (Build): Advertise guix environment.
2021-02-26Link to dependencies in README.Arun Isaac
* README.org (Build): Link to dependencies.
2021-02-26Specify GSL as a dependency in README.Arun Isaac
* README.org (Build): Specify GSL as a dependency.
2021-02-26Add indent to build dependencies.Arun Isaac
* guix.scm (extent-sampling): Add indent to native-inputs.
2021-02-26Fix home-page in guix.scm.Arun Isaac
* guix.scm (extent-sampling): Fix home-page.
2021-02-26Add README.Arun Isaac
* README.org: New file.
2021-02-26Comment about building and installing shared library.Arun Isaac
* CMakeLists.txt: Comment about building and installing shared library.
2021-02-26Include GNUInstallDirs earlier in CMakeLists.Arun Isaac
* CMakeLists.txt: Include GNUInstallDirs earlier.
2021-02-26Wrap volume-window function.Arun Isaac
* scm/extent-sampling/wrap.scm (volume-window): New function.
2021-02-26Remove unused neval variable.Arun Isaac
* src/extent-sampling.sc (integral-per-direction): Remove neval from function arguments. (integral): Adjust integral-per-direction function call.
2021-02-24Remove workaround for sph-sc negation bug.Arun Isaac
The bug has been fixed upstream. * src/integrands.sc (gaussian-integrand): Remove workaround for sph-sc negation bug.
2021-02-23Wrap integral function.Arun Isaac
* scm/extent-sampling/wrap.scm (maybe-procedure->integrand, integral): New functions.
2021-02-23Wrap volume function.Arun Isaac
* scm/extent-sampling/wrap.scm (maybe-procedure->extent-oracle, maybe-procedure->integrand): New functions.
2021-02-23Wrap integrands.Arun Isaac
* scm/extent-sampling/wrap.scm (make-integrand, make-polynomial-integrand, gaussian-integrand, x-coordinate-integrand): New functions.
2021-02-23Wrap extent oracles.Arun Isaac
* scm/extent-sampling/wrap.scm (make-extent-oracle, make-bernoulli-params, make-bernoulli-oracle, true-volume-procedure, bernoulli-true-volume, make-uniform-params, make-uniform-oracle, uniform-true-volume, make-beta-params, make-beta-oracle, beta-true-volume, make-cube-params, make-cube-oracle, cube-true-volume, make-spheroid-params, make-spheroid-oracle, spheroid-true-volume): New functions.
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