diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/README.md b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/README.md index 6edb6079ac93..bfa978287908 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/README.md @@ -143,6 +143,112 @@ for ( i = 0; i < 25; i++ ) { + + +
+ +## C APIs + + + +
+ +
+ + + + + +
+ +### Usage + +```c +#include "stdlib/stats/base/dists/discrete-uniform/pmf.h" +``` + +#### stdlib_base_dists_discrete_uniform_pmf( x, a, b ) + +Evaluates the [probability mass function][pmf] (PMF) for a [discrete uniform][discrete-uniform-distribution] distribution with parameters `a` (minimum support) and `b` (maximum support). + +```c +double out = stdlib_base_dists_discrete_uniform_pmf( 2.0, 0, 4 ); +// returns ~0.2 +``` + +The function accepts the following arguments: + +- **x**: `[in] double` input value. +- **a**: `[in] int32_t` minimum support. +- **b**: `[in] int32_t` maximum support. + +```c +double stdlib_base_dists_discrete_uniform_pmf( const double x, const int32_t a, const int32_t b ); +``` + +
+ + + + + +
+ +
+ + + + + +
+ +### Examples + +```c +#include "stdlib/stats/base/dists/discrete-uniform/pmf.h" +#include "stdlib/math/base/special/round.h" +#include +#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 ) { + int32_t a; + int32_t b; + double x; + double y; + int i; + + for ( i = 0; i < 10; i++ ) { + a = stdlib_base_round( random_uniform( 0.0, 10.0 ) ); + b = stdlib_base_round( random_uniform( 0.0, 10.0 ) ) + a; + x = stdlib_base_round( random_uniform( a*1.0, b*1.0 ) ); + y = stdlib_base_dists_discrete_uniform_logpmf( x, a, b ); + printf( "x:%lf, a: %d, b: %d, P(X=x;a,b): %lf\n", x, a, b, y ); + } +} +``` + +
+ + + +
+ + + + + +
+ +
+ + +
diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/benchmark.native.js new file mode 100644 index 000000000000..f54c77013031 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/benchmark.native.js @@ -0,0 +1,74 @@ +/** +* @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. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var bench = require( '@stdlib/bench' ); +var Float64Array = require( '@stdlib/array/float64' ); +var randu = require( '@stdlib/random/base/randu' ); +var round = require( '@stdlib/math/base/special/round' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var tryRequire = require( '@stdlib/utils/try-require' ); +var pkg = require( './../package.json' ).name; + + +// VARIABLES // + +var pmf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( pmf instanceof Error ) +}; + + +// MAIN // + +bench( pkg+'::native', opts, function benchmark( b ) { + var min; + var max; + var len; + var x; + var y; + var i; + + len = 100; + x = new Float64Array( len ); + min = new Float64Array( len ); + max = new Float64Array( len ); + for ( i = 0; i < len; i++ ) { + min[ i ] = round( randu()*10.0 ); + max[ i ] = round( randu() * 10.0 ) + min[ i ]; + x[ i ] = round( randu() * max[ i ] ) - min[ i ]; + } + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = pmf( x[ i % len ], min[ i % len ], max[ 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/discrete-uniform/pmf/benchmark/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/c/Makefile new file mode 100644 index 000000000000..a4bd7b38fd74 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/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/discrete-uniform/pmf/benchmark/c/benchmark.c b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/c/benchmark.c new file mode 100644 index 000000000000..3faf33e93405 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/benchmark/c/benchmark.c @@ -0,0 +1,144 @@ +/** +* @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/discrete-uniform/pmf.h" +#include "stdlib/math/base/special/round.h" +#include +#include +#include +#include +#include +#include + +#define NAME "discrete-uniform-pmf" +#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; + int32_t a[ 100 ]; + int32_t b[ 100 ]; + double x[ 100 ]; + double y; + double t; + int i; + + for ( i = 0; i < 100; i++ ) { + a[ i ] = stdlib_base_round( random_uniform( 0.0, 10.0 ) ); + b[ i ] = stdlib_base_round( random_uniform( 0.0, 10.0 ) ) + a[ i ]; + x[ i ] = stdlib_base_round( random_uniform( a[ i ]*1.0, b[ i ]*1.0 ) ); + } + + t = tic(); + for ( i = 0; i < ITERATIONS; i++ ) { + y = stdlib_base_dists_discrete_uniform_pmf( x[ i%100 ] ,a[ i%100 ], b[ 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/discrete-uniform/pmf/binding.gyp b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/binding.gyp new file mode 100644 index 000000000000..68a1ca11d160 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/binding.gyp @@ -0,0 +1,170 @@ +# @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` 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/discrete-uniform/pmf/examples/c/Makefile b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/examples/c/Makefile new file mode 100644 index 000000000000..25ced822f96a --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/examples/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 := 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/discrete-uniform/pmf/examples/c/example.c b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/examples/c/example.c new file mode 100644 index 000000000000..32e5951882ef --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/examples/c/example.c @@ -0,0 +1,44 @@ +/** +* @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/discrete-uniform/pmf.h" +#include "stdlib/math/base/special/round.h" +#include +#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 ) { + int32_t a; + int32_t b; + double x; + double y; + int i; + + for ( i = 0; i < 10; i++ ) { + a = stdlib_base_round( random_uniform( 0.0, 10.0 ) ); + b = stdlib_base_round( random_uniform( 0.0, 10.0 ) ) + a; + x = stdlib_base_round( random_uniform( a*1.0, b*1.0 ) ); + y = stdlib_base_dists_discrete_uniform_pmf( x, a, b ); + printf( "x:%lf, a: %d, b: %d, P(X=x;a,b): %lf\n", x, a, b, y ); + } +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/include.gypi b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/include.gypi new file mode 100644 index 000000000000..ecfaf82a3279 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/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': [ + ' + +/* +* If C++, prevent name mangling so that the compiler emits a binary file having undecorated names, thus mirroring the behavior of a C compiler. +*/ +#ifdef __cplusplus +extern "C" { +#endif +/** +* Returns the probability mass function (PMF) for a discrete uniform distribution with parameters `a` (minimum support) and `b` (maximum support). +*/ +double stdlib_base_dists_discrete_uniform_pmf( const double x, const int32_t a, const int32_t b ); + +#ifdef __cplusplus +} +#endif + +#endif // !STDLIB_STATS_BASE_DISTS_DISCRETE_UNIFORM_PMF_H diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/lib/native.js b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/lib/native.js new file mode 100644 index 000000000000..8d1900dc210b --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/lib/native.js @@ -0,0 +1,64 @@ +/** +* @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. +*/ + +'use strict'; + +// MODULES // + +var addon = require( './../src/addon.node' ); + + +// MAIN // + +/** +* Evaluates the probability mass function (PMF) for a discrete uniform distribution with minimum support `a` and maximum support `b` at a value `x`. +* +* @private +* @param {number} x - input value +* @param {integer} a - minimum support +* @param {integer} b - maximum support +* @returns {number} evaluated logPMF +* +* @example +* var y = pmf( 2.0, 0, 4 ); +* // returns ~0.2 +* +* @example +* var y = pmf( 5.0, 0, 4 ); +* // returns 0.0 +* +* @example +* var y = pmf( 2, 0, 8 ); +* // returns ~0.111 +* +* @example +* var y = pmf( NaN, 0, 1 ); +* // returns NaN +* +* @example +* var y = pmf( 2.0, 3, 1 ); +* // returns NaN +*/ +function pmf( x, a, b ) { + return addon( x, a, b ); +} + + +// EXPORTS // + +module.exports = pmf; diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/manifest.json b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/manifest.json new file mode 100644 index 000000000000..d1cc39a42456 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/manifest.json @@ -0,0 +1,81 @@ +{ + "options": { + "task": "build", + "wasm": false + }, + "fields": [ + { + "field": "src", + "resolve": true, + "relative": true + }, + { + "field": "include", + "resolve": true, + "relative": true + }, + { + "field": "libraries", + "resolve": false, + "relative": false + }, + { + "field": "libpath", + "resolve": true, + "relative": false + } + ], + "confs": [ + { + "task": "build", + "wasm": false, + "src": [ + "./src/main.c" + ], + "include": [ + "./include" + ], + "libraries": [], + "libpath": [], + "dependencies": [ + "@stdlib/math/base/napi/ternary", + "@stdlib/math/base/assert/is-nan", + "@stdlib/math/base/assert/is-integer" + ] + }, + { + "task": "benchmark", + "wasm": false, + "src": [ + "./src/main.c" + ], + "include": [ + "./include" + ], + "libraries": [], + "libpath": [], + "dependencies": [ + "@stdlib/math/base/special/round", + "@stdlib/math/base/assert/is-nan", + "@stdlib/math/base/assert/is-integer" + ] + }, + { + "task": "examples", + "wasm": false, + "src": [ + "./src/main.c" + ], + "include": [ + "./include" + ], + "libraries": [], + "libpath": [], + "dependencies": [ + "@stdlib/math/base/special/round", + "@stdlib/math/base/assert/is-nan", + "@stdlib/math/base/assert/is-integer" + ] + } + ] +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/package.json b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/package.json index f02eed804688..af9bab915465 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/package.json +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/package.json @@ -14,11 +14,14 @@ } ], "main": "./lib", + "gypfile": true, "directories": { "benchmark": "./benchmark", "doc": "./docs", "example": "./examples", + "include": "./include", "lib": "./lib", + "src": "./src", "test": "./test" }, "types": "./docs/types", diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/Makefile b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/Makefile new file mode 100644 index 000000000000..7733b6180cb4 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/Makefile @@ -0,0 +1,70 @@ +#/ +# @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 + + +# RULES # + +#/ +# Removes generated files for building an add-on. +# +# @example +# make clean-addon +#/ +clean-addon: + $(QUIET) -rm -f *.o *.node + +.PHONY: clean-addon + +#/ +# Removes generated files. +# +# @example +# make clean +#/ +clean: clean-addon + +.PHONY: clean diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/addon.c b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/addon.c new file mode 100644 index 000000000000..e4d17fda86df --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/addon.c @@ -0,0 +1,23 @@ +/** +* @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/discrete-uniform/pmf.h" +#include "stdlib/math/base/napi/ternary.h" + +// cppcheck-suppress shadowFunction +STDLIB_MATH_BASE_NAPI_MODULE_DII_D( stdlib_base_dists_discrete_uniform_pmf ) diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/main.c b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/main.c new file mode 100644 index 000000000000..d75ab5ff7210 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/src/main.c @@ -0,0 +1,51 @@ +/** +* @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/discrete-uniform/pmf.h" +#include "stdlib/math/base/assert/is_integer.h" +#include "stdlib/math/base/assert/is_nan.h" +#include + +/** +* Evaluates the probability mass function (PMF) for a discrete uniform distribution with minimum support `a` and maximum support `b` at a value `x`. +* +* @param x input value +* @param a minimum support +* @param b maximum support +* @return PMF +* +* @example +* double y = stdlib_base_dists_discrete_uniform_pmf( 2.0, 0, 4 ); +* // returns ~0.2 +*/ +double stdlib_base_dists_discrete_uniform_pmf( const double x, const int32_t a, const int32_t b ) { + if ( + stdlib_base_is_nan( x ) || + a > b + ) { + return 0.0/0.0; // NaN + } + if ( + x < a || + x > b || + !stdlib_base_is_integer( x ) + ) { + return 0.0; + } + return 1.0 / ( b - a + 1.0 ); +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/test/test.native.js b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/test/test.native.js new file mode 100644 index 000000000000..11190f50dd1c --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/discrete-uniform/pmf/test/test.native.js @@ -0,0 +1,160 @@ +/** +* @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. +*/ + +'use strict'; + +// MODULES // + +var resolve = require( 'path' ).resolve; +var tape = require( 'tape' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var abs = require( '@stdlib/math/base/special/abs' ); +var PINF = require( '@stdlib/constants/float64/pinf' ); +var NINF = require( '@stdlib/constants/float64/ninf' ); +var EPS = require( '@stdlib/constants/float64/eps' ); +var tryRequire = require( '@stdlib/utils/try-require' ); + + +// FIXTURES // + +var smallRange = require( './fixtures/julia/small_range.json' ); +var mediumRange = require( './fixtures/julia/medium_range.json' ); +var largeRange = require( './fixtures/julia/large_range.json' ); + + +// VARIABLES // + +var pmf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); +var opts = { + 'skip': ( pmf instanceof Error ) +}; + +tape( 'main export is a function', opts, function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof pmf, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'if provided `NaN` for any parameter, the function returns `NaN`', opts, function test( t ) { + var y = pmf( NaN, 0, 1 ); + t.equal( isnan( y ), true, 'returns NaN' ); + + t.end(); +}); + +tape( 'if provided `Infinity` for `x` and a finite `a` and `b`, the function returns `0`', opts, function test( t ) { + var y = pmf( PINF, 0.0, 1.0 ); + t.equal( y, 0.0, 'returns 0' ); + t.end(); +}); + +tape( 'if provided `-Infinity` for `x` and a finite `a` and `b`, the function returns `0`', opts, function test( t ) { + var y = pmf( NINF, 0.0, 1.0 ); + t.equal( y, 0.0, 'returns 0' ); + t.end(); +}); + +tape( 'if provided `a > b`, the function returns `NaN`', opts, function test( t ) { + var y; + + y = pmf( 2.0, 3, 2 ); + t.equal( isnan( y ), true, 'returns NaN' ); + + t.end(); +}); + +tape( 'the function evaluates the pmf for `x` given a small range `b - a`', opts, function test( t ) { + var expected; + var delta; + var tol; + var x; + var a; + var b; + var y; + var i; + + expected = smallRange.expected; + x = smallRange.x; + a = smallRange.a; + b = smallRange.b; + for ( i = 0; i < x.length; i++ ) { + y = pmf( x[i], a[i], b[i] ); + if ( y === expected[i] ) { + t.equal( y, expected[i], 'x: '+x[i]+', a: '+a[i]+', b: '+b[i]+', y: '+y+', expected: '+expected[i] ); + } else { + delta = abs( y - expected[ i ] ); + tol = 1.0 * EPS * abs( expected[ i ] ); + t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); + +tape( 'the function evaluates the pmf for `x` given a medium range `b - a`', opts, function test( t ) { + var expected; + var delta; + var tol; + var x; + var a; + var b; + var y; + var i; + + expected = mediumRange.expected; + x = mediumRange.x; + a = mediumRange.a; + b = mediumRange.b; + for ( i = 0; i < x.length; i++ ) { + y = pmf( x[i], a[i], b[i] ); + if ( y === expected[i] ) { + t.equal( y, expected[i], 'x: '+x[i]+', a: '+a[i]+', b: '+b[i]+', y: '+y+', expected: '+expected[i] ); + } else { + delta = abs( y - expected[ i ] ); + tol = 1.0 * EPS * abs( expected[ i ] ); + t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); + +tape( 'the function evaluates the pmf for `x` given a large range `b - a`', opts, function test( t ) { + var expected; + var delta; + var tol; + var x; + var a; + var b; + var y; + var i; + + expected = largeRange.expected; + x = largeRange.x; + a = largeRange.a; + b = largeRange.b; + for ( i = 0; i < x.length; i++ ) { + y = pmf( x[i], a[i], b[i] ); + if ( y === expected[i] ) { + t.equal( y, expected[i], 'x: '+x[i]+', a: '+a[i]+', b: '+b[i]+', y: '+y+', expected: '+expected[i] ); + } else { + delta = abs( y - expected[ i ] ); + tol = 1.0 * EPS * abs( expected[ i ] ); + t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. a: '+a[i]+'. b: '+b[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +});