From fa0b67cb1e8b21e1a2e2b52176a73b254c0d04ba Mon Sep 17 00:00:00 2001 From: Philipp Burckhardt Date: Wed, 26 Aug 2026 11:47:07 -0500 Subject: [PATCH 1/5] feat: add C implementation for `stats/base/dists/chisquare/quantile` Co-Authored-By: Claude Opus 5 (1M context) --- .../base/dists/chisquare/quantile/README.md | 80 +++++++++ .../quantile/benchmark/benchmark.native.js | 69 +++++++ .../chisquare/quantile/benchmark/c/Makefile | 146 +++++++++++++++ .../quantile/benchmark/c/benchmark.c | 140 +++++++++++++++ .../base/dists/chisquare/quantile/binding.gyp | 170 ++++++++++++++++++ .../chisquare/quantile/examples/c/Makefile | 146 +++++++++++++++ .../chisquare/quantile/examples/c/example.c | 40 +++++ .../dists/chisquare/quantile/include.gypi | 53 ++++++ .../stats/base/dists/chisquare/quantile.h | 38 ++++ .../dists/chisquare/quantile/lib/native.js | 59 ++++++ .../dists/chisquare/quantile/manifest.json | 76 ++++++++ .../dists/chisquare/quantile/package.json | 3 + .../dists/chisquare/quantile/src/Makefile | 70 ++++++++ .../base/dists/chisquare/quantile/src/addon.c | 22 +++ .../base/dists/chisquare/quantile/src/main.c | 35 ++++ .../chisquare/quantile/test/test.native.js | 125 +++++++++++++ 16 files changed, 1272 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/binding.gyp create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include.gypi create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include/stdlib/stats/base/dists/chisquare/quantile.h create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/lib/native.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/manifest.json create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/Makefile create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/addon.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/main.c create mode 100644 lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.native.js diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md index a06e1efeeb81..a91fc6d4a1db 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md @@ -147,6 +147,86 @@ logEachMap( 'p: %0.4f, k: %0.4f, Q(p;k): %0.4f', p, k, quantile ); + + +
+ +
+ +
+ + + + +
+ +## C APIs + +### Usage + +```c +#include "stdlib/stats/base/dists/chisquare/quantile.h" +``` + +#### stdlib_base_dists_chisquare_quantile( p, k ) + +Evaluates the [quantile function][quantile-function] for a [chi-squared][chisquare-distribution] distribution with degrees of freedom `k`. + +```c +double out = stdlib_base_dists_chisquare_quantile( 0.8, 1.0 ); +// returns ~1.642 +``` + +The function accepts the following arguments: + +- **p**: `[in] double` input probability. +- **k**: `[in] double` degrees of freedom. + +```c +double stdlib_base_dists_chisquare_quantile( const double p, const double k ); +``` + +
+ + + +
+ +### Examples + +```c +#include "stdlib/stats/base/dists/chisquare/quantile.h" +#include +#include + +static double random_uniform( double min, double max ) { + double scale = rand() / (double) RAND_MAX; + return min + ( scale * ( max - min ) ); +} + +int main( void ) { + double k; + double p; + double y; + int i; + + for ( i = 0; i < 25; i++ ) { + p = random_uniform( 0.0, 1.0 ); + k = random_uniform( 0.1, 20.0 ); + y = stdlib_base_dists_chisquare_quantile( p, k ); + printf( "p: %lf, k: %lf, Q(p;k): %lf\n", p, k, y ); + } +} +``` + +
+ + + +
+ + +
diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js new file mode 100644 index 000000000000..48d4ca2ef479 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js @@ -0,0 +1,69 @@ +/** +* @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 uniform = require( '@stdlib/random/array/uniform' ); +var format = require( '@stdlib/string/format' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var EPS = require( '@stdlib/constants/float64/eps' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var quantile = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( quantile instanceof Error ) +}; + + +// MAIN // + +bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var p; + var k; + var y; + var i; + + p = uniform( 100, 0.0, 1.0, { + 'dtype': 'float64' + }); + k = uniform( 100, EPS, 20.0, { + 'dtype': 'float64' + }); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = quantile( p[ i % p.length ], k[ i % k.length ] ); + 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/quantile/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/Makefile new file mode 100644 index 000000000000..979768abbcec --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/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 := 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/quantile/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c new file mode 100644 index 000000000000..9c0b0c614226 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c @@ -0,0 +1,140 @@ +/** +* @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. +*/ + +#include "stdlib/stats/base/dists/chisquare/quantile.h" +#include +#include +#include +#include +#include + +#define NAME "chisquare-quantile" +#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 p[ 100 ]; + double k[ 100 ]; + double y; + double t; + int i; + + for ( i = 0; i < 100; i++ ) { + p[ i ] = random_uniform( 0.0, 1.0 ); + k[ i ] = random_uniform( 0.1, 20.0 ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + y = stdlib_base_dists_chisquare_quantile( p[ 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/quantile/binding.gyp b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/binding.gyp new file mode 100644 index 000000000000..0d6508a12e99 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/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/quantile/examples/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/Makefile new file mode 100644 index 000000000000..c8f8e9a1517b --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/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/quantile/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c new file mode 100644 index 000000000000..faca7b001917 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c @@ -0,0 +1,40 @@ +/** +* @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. +*/ + +#include "stdlib/stats/base/dists/chisquare/quantile.h" +#include +#include + +static double random_uniform( double min, double max ) { + double scale = rand() / (double) RAND_MAX; + return min + ( scale * ( max - min ) ); +} + +int main( void ) { + double k; + double p; + double y; + int i; + + for ( i = 0; i < 25; i++ ) { + p = random_uniform( 0.0, 1.0 ); + k = random_uniform( 0.1, 20.0 ); + y = stdlib_base_dists_chisquare_quantile( p, k ); + printf( "p: %lf, k: %lf, Q(p;k): %lf\n", p, k, y ); + } +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include.gypi new file mode 100644 index 000000000000..bee8d41a2caf --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include.gypi @@ -0,0 +1,53 @@ +# @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 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: Sun, 4 Oct 2026 21:38:42 -0700 Subject: [PATCH 2/5] docs: update documentation and examples --- 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_pkg_readmes status: passed - task: lint_markdown_docs status: na - 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: passed - 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 --- --- .../base/dists/chisquare/quantile/README.md | 27 ++++++++++++++----- .../chisquare/quantile/examples/c/example.c | 6 ++--- .../stats/base/dists/chisquare/quantile.h | 2 +- .../dists/chisquare/quantile/lib/native.js | 19 ++++++++++++- 4 files changed, 43 insertions(+), 11 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md index a91fc6d4a1db..9b0e7303d2cd 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/README.md @@ -147,21 +147,26 @@ logEachMap( 'p: %0.4f, k: %0.4f, Q(p;k): %0.4f', p, k, quantile ); - + + +* * *
+## C APIs + + +
+
-## C APIs - ### Usage ```c @@ -190,6 +195,16 @@ double stdlib_base_dists_chisquare_quantile( const double p, const double k ); + + +
+ +
+ + + + +
### Examples @@ -199,9 +214,9 @@ double stdlib_base_dists_chisquare_quantile( const double p, const double k ); #include #include -static double random_uniform( double min, double max ) { - double scale = rand() / (double) RAND_MAX; - return min + ( scale * ( max - min ) ); +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 ) { diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c index faca7b001917..da0ab10d2214 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/examples/c/example.c @@ -20,9 +20,9 @@ #include #include -static double random_uniform( double min, double max ) { - double scale = rand() / (double) RAND_MAX; - return min + ( scale * ( max - min ) ); +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 ) { diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include/stdlib/stats/base/dists/chisquare/quantile.h b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include/stdlib/stats/base/dists/chisquare/quantile.h index 9f3c1cf403c6..e4bc3bf00564 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include/stdlib/stats/base/dists/chisquare/quantile.h +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/include/stdlib/stats/base/dists/chisquare/quantile.h @@ -27,7 +27,7 @@ extern "C" { #endif /** -* Evaluates the quantile function for a chi-squared distribution. +* Evaluates the quantile function for a chi-squared distribution with degrees of freedom `k` at a probability `p`. */ double stdlib_base_dists_chisquare_quantile( const double p, const double k ); diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/lib/native.js index 6e67a1eab005..46755dccf4c1 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/lib/native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/lib/native.js @@ -26,7 +26,7 @@ var addon = require( './../src/addon.node' ); // MAIN // /** -* Evaluates the quantile function for a chi-squared distribution. +* Evaluates the quantile function for a chi-squared distribution with degrees of freedom `k` at a probability `p`. * * @private * @param {Probability} p - input value @@ -42,12 +42,29 @@ var addon = require( './../src/addon.node' ); * // returns ~3.357 * * @example +* var y = quantile( 0.8, 0.1 ); +* // returns ~0.014 +* +* @example +* var y = quantile( -0.2, 0.5 ); +* // returns NaN +* +* @example +* var y = quantile( 1.1, 0.5 ); +* // returns NaN +* +* @example * var y = quantile( NaN, 1.0 ); * // returns NaN * * @example * var y = quantile( 0.0, NaN ); * // returns NaN +* +* @example +* // Negative degrees of freedom: +* var y = quantile( 0.5, -1.0 ); +* // returns NaN */ function quantile( p, k ) { return addon( p, k ); From d421d6d52d36ce766a4aa957018c51d61a0488a4 Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Sun, 4 Oct 2026 21:39:28 -0700 Subject: [PATCH 3/5] test: update tolerances and assertion messages The exact minimum ULP tolerance over the fixture set is 402 for the JavaScript, native, and factory code paths alike. --- 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_pkg_readmes status: na - task: lint_markdown_docs status: na - task: lint_markdown status: na - 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 --- --- .../dists/chisquare/quantile/test/test.factory.js | 7 ++++++- .../dists/chisquare/quantile/test/test.native.js | 15 +++------------ 2 files changed, 9 insertions(+), 13 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.factory.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.factory.js index 9a2ac676621d..90f1e1fce532 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.factory.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.factory.js @@ -23,6 +23,7 @@ var tape = require( 'tape' ); var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var NINF = require( '@stdlib/constants/float64/ninf' ); var factory = require( './../lib/factory.js' ); @@ -86,6 +87,10 @@ tape( 'if provided a negative `k`, the created function always returns `NaN`', f y = quantile( 0.0 ); t.strictEqual( isnan( y ), true, 'returns expected value' ); + quantile = factory( NINF ); + y = quantile( 0.5 ); + t.strictEqual( isnan( y ), true, 'returns expected value' ); + t.end(); }); @@ -110,7 +115,7 @@ tape( 'if `k` equals `0`, the created function evaluates a degenerate distributi t.end(); }); -tape( 'the created function evaluates the quantile for `x` given parameter `k`', function test( t ) { +tape( 'the created function evaluates the quantile for `x` given degrees of freedom `k`', function test( t ) { var expected; var quantile; var p; diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.native.js index 374941aa32ae..00d8d0581791 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/test/test.native.js @@ -22,11 +22,10 @@ var resolve = require( 'path' ).resolve; var tape = require( 'tape' ); +var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); -var abs = require( '@stdlib/math/base/special/abs' ); -var NINF = require( '@stdlib/constants/float64/ninf' ); -var EPS = require( '@stdlib/constants/float64/eps' ); var tryRequire = require( '@stdlib/utils/try-require' ); +var NINF = require( '@stdlib/constants/float64/ninf' ); // FIXTURES // @@ -101,8 +100,6 @@ tape( 'if `k` equals `0`, the function evaluates a degenerate distribution cente tape( 'the function evaluates the quantile for `x` given degrees of freedom `k`', opts, function test( t ) { var expected; - var delta; - var tol; var p; var k; var y; @@ -113,13 +110,7 @@ tape( 'the function evaluates the quantile for `x` given degrees of freedom `k`' k = decimalDecimal.k; for ( i = 0; i < p.length; i++ ) { y = quantile( p[i], k[i] ); - if ( y === expected[i] ) { - t.strictEqual( y, expected[i], 'p: '+p[i]+', k: '+k[i]+', y: '+y+', expected: '+expected[i] ); - } else { - delta = abs( y - expected[ i ] ); - tol = 250.0 * EPS * abs( expected[ i ] ); - t.ok( delta <= tol, 'within tolerance. p: '+p[ i ]+'. k: '+k[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); - } + t.strictEqual( isAlmostSameValue( y, expected[ i ], 402 ), true, 'returns expected value' ); } t.end(); }); From e6a73d8b1958694374afddbb42588f65f61a2bfb Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Sun, 4 Oct 2026 21:40:04 -0700 Subject: [PATCH 4/5] chore: code review --- 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_pkg_readmes status: na - task: lint_markdown_docs status: na - task: lint_markdown status: na - 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: na - task: lint_javascript_benchmarks status: passed - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: passed - task: lint_c_examples status: na - task: lint_c_benchmarks status: passed - 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 --- --- .../chisquare/quantile/benchmark/benchmark.native.js | 10 +++++----- .../dists/chisquare/quantile/benchmark/c/benchmark.c | 2 +- .../stats/base/dists/chisquare/quantile/src/addon.c | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js index 48d4ca2ef479..96bf0b755d1a 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/benchmark.native.js @@ -41,17 +41,17 @@ var opts = { // MAIN // bench( format( '%s::native', pkg ), opts, function benchmark( b ) { + var opts; var p; var k; var y; var i; - p = uniform( 100, 0.0, 1.0, { + opts = { 'dtype': 'float64' - }); - k = uniform( 100, EPS, 20.0, { - 'dtype': 'float64' - }); + }; + p = uniform( 100, 0.0, 1.0, opts ); + k = uniform( 100, EPS, 20.0, opts ); b.tic(); for ( i = 0; i < b.iterations; i++ ) { diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c index 9c0b0c614226..23526e8ba842 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/benchmark/c/benchmark.c @@ -92,9 +92,9 @@ static double random_uniform( const double min, const double max ) { * @return elapsed time in seconds */ static double benchmark( void ) { - double elapsed; double p[ 100 ]; double k[ 100 ]; + double elapsed; double y; double t; int i; diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/addon.c index bf68f06cc16e..cce58bd568e9 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/addon.c +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/src/addon.c @@ -16,7 +16,7 @@ * limitations under the License. */ -#include "stdlib/math/base/napi/binary.h" #include "stdlib/stats/base/dists/chisquare/quantile.h" +#include "stdlib/math/base/napi/binary.h" STDLIB_MATH_BASE_NAPI_MODULE_DD_D( stdlib_base_dists_chisquare_quantile ) From 14f51e4ab7b665a1d5b3cfa20d3f674a925c1c5a Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Sun, 4 Oct 2026 21:40:58 -0700 Subject: [PATCH 5/5] chore: update keywords --- 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_pkg_readmes status: na - task: lint_markdown_docs status: na - task: lint_markdown status: na - task: lint_package_json status: passed - 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: 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/quantile/package.json | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/package.json b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/package.json index 8acfb395552a..7a0b4fef8be4 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/package.json +++ b/lib/node_modules/@stdlib/stats/base/dists/chisquare/quantile/package.json @@ -60,10 +60,9 @@ "dist", "probability", "prob", - "cdf", - "cumulative", - "inverse", "quantile", + "inverse", + "cdf", "chisquare", "chi-square", "chisquared",