From b6948b0862335e300b13168d58d753c2480cfd91 Mon Sep 17 00:00:00 2001 From: Siddhartha <92244610+Witty-31-06@users.noreply.github.com> Date: Tue, 10 Mar 2026 00:59:38 +0530 Subject: [PATCH 1/3] feat: add C implementation for `frechet/pdf` --- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: passed - task: lint_package_json status: passed - task: lint_repl_help status: na - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: missing_dependencies - task: lint_c_benchmarks status: missing_dependencies - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../stats/base/dists/frechet/pdf/README.md | 103 +++++++++ .../frechet/pdf/benchmark/benchmark.native.js | 74 ++++++ .../dists/frechet/pdf/benchmark/c/Makefile | 146 ++++++++++++ .../dists/frechet/pdf/benchmark/c/benchmark.c | 144 ++++++++++++ .../stats/base/dists/frechet/pdf/binding.gyp | 170 ++++++++++++++ .../dists/frechet/pdf/examples/c/Makefile | 146 ++++++++++++ .../dists/frechet/pdf/examples/c/example.c | 44 ++++ .../stats/base/dists/frechet/pdf/include.gypi | 53 +++++ .../stdlib/stats/base/dists/frechet/pdf.h | 38 +++ .../base/dists/frechet/pdf/lib/native.js | 80 +++++++ .../base/dists/frechet/pdf/manifest.json | 85 +++++++ .../stats/base/dists/frechet/pdf/package.json | 3 + .../stats/base/dists/frechet/pdf/src/Makefile | 70 ++++++ .../stats/base/dists/frechet/pdf/src/addon.c | 22 ++ .../stats/base/dists/frechet/pdf/src/main.c | 50 ++++ .../dists/frechet/pdf/test/test.native.js | 217 ++++++++++++++++++ 16 files changed, 1445 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/benchmark/c/benchmark.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/binding.gyp create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/include.gypi create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/include/stdlib/stats/base/dists/frechet/pdf.h create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/lib/native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/manifest.json create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/src/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/src/addon.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/src/main.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/test/test.native.js diff --git a/lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/README.md index 05a0de31d1ff..711ba8b03f1b 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/frechet/pdf/README.md @@ -160,6 +160,108 @@ for ( i = 0; i < 100; i++ ) { + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/stats/base/dists/frechet/pdf.h" +``` + +#### stdlib_base_dists_frechet_pdf( x, alpha, s, m ) + +Evaluates the [probability density function][pdf] (PDF) for a [Fréchet][frechet-distribution] distribution with shape `alpha`, scale `s`, and location `m` at a value `x`. + +```c +double y = stdlib_base_dists_frechet_pdf( 10.0, 2.0, 3.0, 2.0 ); +// returns ~0.031 +``` + +The function accepts the following arguments: + +- **x**: `[in] double` input value. +- **alpha**: `[in] double` shape parameter. +- **s**: `[in] double` scale parameter. +- **m**: `[in] double` location parameter. + +```c +double stdlib_base_dists_frechet_pdf( const double x, const double alpha, const double s, const double m ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/stats/base/dists/frechet/pdf.h" +#include +#include + +static double random_uniform( const double min, const double max ) { + double v = (double)rand() / ( (double)RAND_MAX + 1.0 ); + return min + ( v * ( max - min ) ); +} + +int main( void ) { + double alpha; + double x; + double s; + double m; + double y; + int i; + + for ( i = 0; i < 10; i++ ) { + x = random_uniform( 0.0, 10.0 ); + alpha = random_uniform( 0.0, 10.0 ); + s = random_uniform( 0.0, 10.0 ); + m = random_uniform( 0.0, 10.0 ); + y = stdlib_base_dists_frechet_pdf( x, alpha, s, m ); + printf( "x: %lf, α: %lf, s: %lf, m: %lf, f(x;α,s,m): %lf\n", x, alpha, s, m, y ); + } +} + +``` + +
+ + + +
+ + +