From 4be6d9d7d0d740460ba5ce6b66f2b6a7036830bd Mon Sep 17 00:00:00 2001 From: Siddhartha <92244610+Witty-31-06@users.noreply.github.com> Date: Fri, 6 Mar 2026 20:18:44 +0530 Subject: [PATCH 1/5] feat: add C implementation for `stats/base/dists/chisquare/logpdf` --- 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 --- --- .../base/dists/chisquare/logpdf/README.md | 95 ++++++++++ .../logpdf/benchmark/benchmark.native.js | 71 ++++++++ .../chisquare/logpdf/benchmark/c/Makefile | 146 +++++++++++++++ .../chisquare/logpdf/benchmark/c/benchmark.c | 139 ++++++++++++++ .../base/dists/chisquare/logpdf/binding.gyp | 170 ++++++++++++++++++ .../chisquare/logpdf/examples/c/Makefile | 146 +++++++++++++++ .../chisquare/logpdf/examples/c/example.c | 40 +++++ .../base/dists/chisquare/logpdf/include.gypi | 53 ++++++ .../stats/base/dists/chisquare/logpdf.h | 38 ++++ .../base/dists/chisquare/logpdf/lib/native.js | 68 +++++++ .../base/dists/chisquare/logpdf/manifest.json | 76 ++++++++ .../base/dists/chisquare/logpdf/package.json | 3 + .../base/dists/chisquare/logpdf/src/Makefile | 70 ++++++++ .../base/dists/chisquare/logpdf/src/addon.c | 22 +++ .../base/dists/chisquare/logpdf/src/main.c | 35 ++++ .../chisquare/logpdf/test/test.native.js | 150 ++++++++++++++++ 16 files changed, 1322 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/binding.gyp create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include/stdlib/stats/base/dists/chisquare/logpdf.h create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/manifest.json create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/addon.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/main.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md index b192545a19e0..da8203c61b2d 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md @@ -137,6 +137,101 @@ logEachMap( 'x: %0.4f, k: %0.4f, ln(f(x;k)): %0.4f', x, k, logpdf ); + + +* * * + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/stats/base/dists/chisquare/logpdf.h" +``` + +#### stdlib_base_dists_chisquare_logpdf( x, k ) + +Evaluates the natural logarithm of the [probability density function][pdf] (PDF) for a [chi-squared][chisquare-distribution] distribution with degrees of freedom `k`. + +```c +double out = stdlib_base_dists_chisquare_logpdf( 0.1, 1.0 ); +// returns ~0.182 +``` + +The function accepts the following arguments: + +- **x**: `[in] double` input value. +- **k**: `[in] double` degrees of freedom. + +```c +double stdlib_base_dists_chisquare_logpdf( const double x, const double k ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/stats/base/dists/chisquare/logpdf.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 x; + double k; + double y; + int i; + + for ( i = 0; i < 25; i++ ) { + x = random_uniform( 0.0, 10.0 ); + k = random_uniform( 0.1, 10.0 ); + y = stdlib_base_dists_chisquare_logpdf( x, k ); + printf( "x: %lf, k: %lf, ln(f(x;k)): %lf\n", x, k, y ); + } +} +``` + +
+ + + +
+ + +
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/benchmark.native.js new file mode 100644 index 000000000000..9c18488574b7 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/benchmark.native.js @@ -0,0 +1,71 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2026 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var bench = require( '@stdlib/bench' ); +var Float64Array = require( '@stdlib/array/float64' ); +var uniform = require( '@stdlib/random/base/uniform' ); +var format = require( '@stdlib/string/format' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var logpdf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( logpdf instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var len; + var k; + var x; + var y; + var i; + + len = 100; + x = new Float64Array( len ); + k = new Float64Array( len ); + for ( i = 0; i < len; i++ ) { + x[ i ] = uniform( -10.0, 10.0 ); + k[ i ] = uniform( 0.1, 20.1 ); + } + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = logpdf( x[ i % len ], k[ i % len ] ); + if ( isnan( y ) ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( isnan( y ) ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile new file mode 100644 index 000000000000..a4bd7b38fd74 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2025 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := benchmark.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled benchmarks. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c new file mode 100644 index 000000000000..6314613784f6 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c @@ -0,0 +1,139 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2025 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/base/dists/chisquare/logpdf.h" +#include +#include +#include +#include + +#define NAME "chisquare-logpdf" +#define ITERATIONS 1000000 +#define REPEATS 3 + +/** +* Prints the TAP version. +*/ +static void print_version( void ) { + printf( "TAP version 13\n" ); +} + +/** +* Prints the TAP summary. +* +* @param total total number of tests +* @param passing total number of passing tests +*/ +static void print_summary( int total, int passing ) { + printf( "#\n" ); + printf( "1..%d\n", total ); // TAP plan + printf( "# total %d\n", total ); + printf( "# pass %d\n", passing ); + printf( "#\n" ); + printf( "# ok\n" ); +} + +/** +* Prints benchmarks results. +* +* @param elapsed elapsed time in seconds +*/ +static void print_results( double elapsed ) { + double rate = (double)ITERATIONS / elapsed; + printf( " ---\n" ); + printf( " iterations: %d\n", ITERATIONS ); + printf( " elapsed: %0.9f\n", elapsed ); + printf( " rate: %0.9f\n", rate ); + printf( " ...\n" ); +} + +/** +* Returns a clock time. +* +* @return clock time +*/ +static double tic( void ) { + struct timeval now; + gettimeofday( &now, NULL ); + return (double)now.tv_sec + (double)now.tv_usec / 1.0e6; +} + +/** +* Generates a random number on the interval [min,max). +* +* @param min minimum value (inclusive) +* @param max maximum value (exclusive) +* @return random number +*/ +static double random_uniform( const double min, const double max ) { + double v = (double)rand() / ( (double)RAND_MAX + 1.0 ); + return min + ( v * ( max - min ) ); +} + +/** +* Runs a benchmark. +* +* @return elapsed time in seconds +*/ +static double benchmark( void ) { + double elapsed; + double k[ 100 ]; + double x[ 100 ]; + double y; + double t; + int i; + + for ( i = 0; i < 100; i++ ) { + x[ i ] = random_uniform( 0.0, 10.0 ); + k[ i ] = random_uniform( 0.1, 10.0 ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + y = stdlib_base_dists_chisquare_logpdf( x[ i % 100 ], k[ i % 100 ] ); + if ( y != y ) { + printf( "should not return NaN\n" ); + break; + } + } + elapsed = tic() - t; + if ( y != y ) { + printf( "should not return NaN\n" ); + } + return elapsed; +} + +/** +* Main execution sequence. +*/ +int main( void ) { + double elapsed; + int i; + + // Use the current time to seed the random number generator: + srand( time( NULL ) ); + + print_version(); + for ( i = 0; i < REPEATS; i++ ) { + printf( "# c::%s\n", NAME ); + elapsed = benchmark(); + print_results( elapsed ); + printf( "ok %d benchmark finished\n", i + 1 ); + } + print_summary( REPEATS, REPEATS ); +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/binding.gyp b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/binding.gyp new file mode 100644 index 000000000000..0d6508a12e99 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/binding.gyp @@ -0,0 +1,170 @@ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A `.gyp` file for building a Node.js native add-on. +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # List of files to include in this file: + 'includes': [ + './include.gypi', + ], + + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Target name should match the add-on export name: + 'addon_target_name%': 'addon', + + # Set variables based on the host OS: + 'conditions': [ + [ + 'OS=="win"', + { + # Define the object file suffix: + 'obj': 'obj', + }, + { + # Define the object file suffix: + 'obj': 'o', + } + ], # end condition (OS=="win") + ], # end conditions + }, # end variables + + # Define compile targets: + 'targets': [ + + # Target to generate an add-on: + { + # The target name should match the add-on export name: + 'target_name': '<(addon_target_name)', + + # Define dependencies: + 'dependencies': [], + + # Define directories which contain relevant include headers: + 'include_dirs': [ + # Local include directory: + '<@(include_dirs)', + ], + + # List of source files: + 'sources': [ + '<@(src_files)', + ], + + # Settings which should be applied when a target's object files are used as linker input: + 'link_settings': { + # Define libraries: + 'libraries': [ + '<@(libraries)', + ], + + # Define library directories: + 'library_dirs': [ + '<@(library_dirs)', + ], + }, + + # C/C++ compiler flags: + 'cflags': [ + # Enable commonly used warning options: + '-Wall', + + # Aggressive optimization: + '-O3', + ], + + # C specific compiler flags: + 'cflags_c': [ + # Specify the C standard to which a program is expected to conform: + '-std=c99', + ], + + # C++ specific compiler flags: + 'cflags_cpp': [ + # Specify the C++ standard to which a program is expected to conform: + '-std=c++11', + ], + + # Linker flags: + 'ldflags': [], + + # Apply conditions based on the host OS: + 'conditions': [ + [ + 'OS=="mac"', + { + # Linker flags: + 'ldflags': [ + '-undefined dynamic_lookup', + '-Wl,-no-pie', + '-Wl,-search_paths_first', + ], + }, + ], # end condition (OS=="mac") + [ + 'OS!="win"', + { + # C/C++ flags: + 'cflags': [ + # Generate platform-independent code: + '-fPIC', + ], + }, + ], # end condition (OS!="win") + ], # end conditions + }, # end target <(addon_target_name) + + # Target to copy a generated add-on to a standard location: + { + 'target_name': 'copy_addon', + + # Declare that the output of this target is not linked: + 'type': 'none', + + # Define dependencies: + 'dependencies': [ + # Require that the add-on be generated before building this target: + '<(addon_target_name)', + ], + + # Define a list of actions: + 'actions': [ + { + 'action_name': 'copy_addon', + 'message': 'Copying addon...', + + # Explicitly list the inputs in the command-line invocation below: + 'inputs': [], + + # Declare the expected outputs: + 'outputs': [ + '<(addon_output_dir)/<(addon_target_name).node', + ], + + # Define the command-line invocation: + 'action': [ + 'cp', + '<(PRODUCT_DIR)/<(addon_target_name).node', + '<(addon_output_dir)/<(addon_target_name).node', + ], + }, + ], # end actions + }, # end target copy_addon + ], # end targets +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/Makefile new file mode 100644 index 000000000000..c8f8e9a1517b --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/Makefile @@ -0,0 +1,146 @@ +#/ +# @license Apache-2.0 +# +# Copyright (c) 2026 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +#/ + +# VARIABLES # + +ifndef VERBOSE + QUIET := @ +else + QUIET := +endif + +# Determine the OS ([1][1], [2][2]). +# +# [1]: https://en.wikipedia.org/wiki/Uname#Examples +# [2]: http://stackoverflow.com/a/27776822/2225624 +OS ?= $(shell uname) +ifneq (, $(findstring MINGW,$(OS))) + OS := WINNT +else +ifneq (, $(findstring MSYS,$(OS))) + OS := WINNT +else +ifneq (, $(findstring CYGWIN,$(OS))) + OS := WINNT +else +ifneq (, $(findstring Windows_NT,$(OS))) + OS := WINNT +endif +endif +endif +endif + +# Define the program used for compiling C source files: +ifdef C_COMPILER + CC := $(C_COMPILER) +else + CC := gcc +endif + +# Define the command-line options when compiling C files: +CFLAGS ?= \ + -std=c99 \ + -O3 \ + -Wall \ + -pedantic + +# Determine whether to generate position independent code ([1][1], [2][2]). +# +# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options +# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option +ifeq ($(OS), WINNT) + fPIC ?= +else + fPIC ?= -fPIC +endif + +# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`): +INCLUDE ?= + +# List of source files: +SOURCE_FILES ?= + +# List of libraries (e.g., `-lopenblas -lpthread`): +LIBRARIES ?= + +# List of library paths (e.g., `-L /foo/bar -L /beep/boop`): +LIBPATH ?= + +# List of C targets: +c_targets := example.out + + +# RULES # + +#/ +# Compiles source files. +# +# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`) +# @param {string} [CFLAGS] - C compiler options +# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`) +# @param {string} [SOURCE_FILES] - list of source files +# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`) +# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`) +# +# @example +# make +# +# @example +# make all +#/ +all: $(c_targets) + +.PHONY: all + +#/ +# Compiles C source files. +# +# @private +# @param {string} CC - C compiler (e.g., `gcc`) +# @param {string} CFLAGS - C compiler options +# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`) +# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`) +# @param {string} SOURCE_FILES - list of source files +# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`) +# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`) +#/ +$(c_targets): %.out: %.c + $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES) + +#/ +# Runs compiled examples. +# +# @example +# make run +#/ +run: $(c_targets) + $(QUIET) ./$< + +.PHONY: run + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: + $(QUIET) -rm -f *.o *.out + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c new file mode 100644 index 000000000000..a73f386811cd --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c @@ -0,0 +1,40 @@ +/** +* @license Apache-2.0 +* +* Copyright (c) 2025 The Stdlib Authors. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "stdlib/stats/base/dists/chisquare/logpdf.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 x; + double k; + double y; + int i; + + for ( i = 0; i < 25; i++ ) { + x = random_uniform( 0.0, 10.0 ); + k = random_uniform( 0.1, 10.0 ); + y = stdlib_base_dists_chisquare_logpdf( x, k ); + printf( "x: %lf, k: %lf, ln(f(x;k)): %lf\n", x, k, y ); + } +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi new file mode 100644 index 000000000000..ecfaf82a3279 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi @@ -0,0 +1,53 @@ +# @license Apache-2.0 +# +# Copyright (c) 2025 The Stdlib Authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# A GYP include file for building a Node.js native add-on. +# +# Main documentation: +# +# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md +# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md +{ + # Define variables to be used throughout the configuration for all targets: + 'variables': { + # Source directory: + 'src_dir': './src', + + # Include directories: + 'include_dirs': [ + ' Date: Fri, 6 Mar 2026 20:26:18 +0530 Subject: [PATCH 2/5] chore: fix typo --- 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: na - task: lint_package_json status: na - 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: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - 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 --- --- .../@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js index 22d6d903dcb4..b52687e5bfdd 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js @@ -26,7 +26,7 @@ var addon = require( './../src/addon.node' ); // MAIN // /** -* Evaluates the log probability density function (logPDF) for a Chi distribution with degrees of freedom `k` at a value `x`. +* Evaluates the natural logarithm of the probability density function (PDF) for a chi-squared distribution with degrees of freedom `k` at a value `x`. * * @private * @param {number} x - input value From 490342c82427827aeb04789462d06b508d4ebe1c Mon Sep 17 00:00:00 2001 From: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com> Date: Fri, 6 Mar 2026 14:57:40 +0000 Subject: [PATCH 3/5] chore: update copyright years --- .../stats/base/dists/chisquare/logpdf/benchmark/c/Makefile | 2 +- .../stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c | 2 +- .../stats/base/dists/chisquare/logpdf/examples/c/example.c | 2 +- .../@stdlib/stats/base/dists/chisquare/logpdf/include.gypi | 2 +- .../@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js | 2 +- .../@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile | 2 +- .../stats/base/dists/chisquare/logpdf/test/test.native.js | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile index a4bd7b38fd74..979768abbcec 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/Makefile @@ -1,7 +1,7 @@ #/ # @license Apache-2.0 # -# Copyright (c) 2025 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c index 6314613784f6..b7232e9a16d3 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/benchmark/c/benchmark.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2025 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c index a73f386811cd..76267dc7fd17 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/examples/c/example.c @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2025 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi index ecfaf82a3279..bee8d41a2caf 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/include.gypi @@ -1,6 +1,6 @@ # @license Apache-2.0 # -# Copyright (c) 2025 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js index b52687e5bfdd..09d627b9f9ee 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2025 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile index 7733b6180cb4..2caf905cedbe 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/src/Makefile @@ -1,7 +1,7 @@ #/ # @license Apache-2.0 # -# Copyright (c) 2025 The Stdlib Authors. +# Copyright (c) 2026 The Stdlib Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js index 97d656d87c33..884da60e9b30 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js @@ -1,7 +1,7 @@ /** * @license Apache-2.0 * -* Copyright (c) 2025 The Stdlib Authors. +* Copyright (c) 2026 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. From cecf7f0f545c695f4f6ead7b8870dadaa9677b5e Mon Sep 17 00:00:00 2001 From: Siddhartha <92244610+Witty-31-06@users.noreply.github.com> Date: Fri, 6 Mar 2026 21:03:07 +0530 Subject: [PATCH 4/5] fix: fix spacings --- 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: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - 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 --- --- .../@stdlib/stats/base/dists/chisquare/logpdf/README.md | 2 +- .../stats/base/dists/chisquare/logpdf/test/test.native.js | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md index da8203c61b2d..78e80f302796 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/README.md @@ -206,7 +206,7 @@ double stdlib_base_dists_chisquare_logpdf( const double x, const double k ); static double random_uniform( const double min, const double max ) { double v = (double)rand() / ( (double)RAND_MAX + 1.0 ); - return min + ( v*(max-min) ); + return min + ( v * ( max - min ) ); } int main( void ) { diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js index 884da60e9b30..83b9f8ba4ad9 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/test/test.native.js @@ -137,13 +137,13 @@ tape( 'the function evaluates the logpdf for `x` given degrees of freedom `k`', x = decimalDecimal.x; k = decimalDecimal.k; for ( i = 0; i < x.length; i++ ) { - y = logpdf( x[i], k[i] ); - if ( y === expected[i] ) { - t.strictEqual( y, expected[i], 'x: '+x[i]+'. k:'+k[i]+', y: '+y+', expected: '+expected[i] ); + y = logpdf( x[ i ], k[ i ] ); + if ( y === expected[ i ] ) { + t.strictEqual( y, expected[ i ], 'x: '+x[ i ]+'. k:'+k[ i ]+', y: '+y+', expected: '+expected[ i ] ); } else { delta = abs( y - expected[ i ] ); tol = 10.0 * EPS * abs( expected[ i ] ); - t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. k: '+k[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. k: '+k[ i ]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); } } t.end(); From 3827b31b6492c44c360f281687d0a2f185252173 Mon Sep 17 00:00:00 2001 From: Philipp Burckhardt Date: Sat, 7 Mar 2026 10:27:42 -0600 Subject: [PATCH 5/5] docs: update type Signed-off-by: Philipp Burckhardt --- .../@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js index 09d627b9f9ee..c750554c03a4 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/logpdf/lib/native.js @@ -30,7 +30,7 @@ var addon = require( './../src/addon.node' ); * * @private * @param {number} x - input value -* @param {number} k - degrees of freedom +* @param {NonNegativeNumber} k - degrees of freedom * @returns {number} evaluated logPDF * * @example