From bae0f1e53d41684de242917ccdafeac7ff41da60 Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 13:21:35 -0800 Subject: [PATCH 1/8] feat: add implementation --- 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../base/dists/bradford/entropy/lib/index.js | 43 +++++++++++ .../base/dists/bradford/entropy/lib/main.js | 74 +++++++++++++++++++ 2 files changed, 117 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/main.js diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js new file mode 100644 index 000000000000..004d68232d75 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js @@ -0,0 +1,43 @@ +/** +* @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'; + +/** +* Bradford distribution differential entropy. +* +* @module @stdlib/stats/base/dists/bradford/entropy +* +* @example +* var entropy = require( '@stdlib/stats/base/dists/bradford/entropy' ); +* +* var v = entropy( 0.1 ); +* // returns ~-0.001 +* +* v = entropy( 0.5 ); +* // returns ~-0.007 +*/ + +// MODULES // + +var entropy = require( './main.js' ); + + +// EXPORTS // + +module.exports = entropy; diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/main.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/main.js new file mode 100644 index 000000000000..8bb6ada8f0c8 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/main.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 isnan = require( '@stdlib/math/base/assert/is-nan' ); +var ln = require( '@stdlib/math/base/special/ln' ); + + +// MAIN // + +/** +* Returns the differential entropy of a Bradford distribution. +* +* @param {PositiveNumber} c - shape parameter +* @returns {number} differential entropy +* +* @example +* var v = entropy( 0.2 ); +* // returns ~-0.001 +* +* @example +* var v = entropy( 0.5 ); +* // returns ~-0.007 +* +* @example +* var v = entropy( 10.0 ); +* // returns ~-0.229 +* +* @example +* var v = entropy( 0.0 ); +* // returns NaN +* +* @example +* var v = entropy( -1.0 ); +* // returns NaN +* +* @example +* var v = entropy( NaN ); +* // returns NaN +*/ +function entropy( c ) { + var k; + if ( + isnan( c ) || + c <= 0.0 + ) { + return NaN; + } + k = ln( 1.0 + c ); + return ( k/2.0 ) - ln( c/k ); +} + + +// EXPORTS // + +module.exports = entropy; From 0187fd6f65f9dfab790dfc2df9e6628d68e6a7ef Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 13:23:36 -0800 Subject: [PATCH 2/8] feat: add tests and their fixtures --- 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: 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: passed - 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../entropy/test/fixtures/python/large_c.json | 1 + .../entropy/test/fixtures/python/runner.py | 76 ++++++++++++ .../entropy/test/fixtures/python/small_c.json | 1 + .../base/dists/bradford/entropy/test/test.js | 117 ++++++++++++++++++ 4 files changed, 195 insertions(+) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/large_c.json create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/runner.py create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/small_c.json create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/large_c.json b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/large_c.json new file mode 100644 index 000000000000..f0154b34b111 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/large_c.json @@ -0,0 +1 @@ +{"c": [1.0, 1.009009009009009, 1.018018018018018, 1.027027027027027, 1.0360360360360361, 1.045045045045045, 1.054054054054054, 1.063063063063063, 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-0.22859616205957356, -0.22874621259985384, -0.22889618310747606, -0.22904607367117125]} diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/runner.py b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/runner.py new file mode 100644 index 000000000000..f65854df204c --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/runner.py @@ -0,0 +1,76 @@ +#!/usr/bin/env python +# +# @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. + +"""Generate fixtures.""" + +import os +import json +import numpy as np +from scipy.stats import bradford + +# Get the file path: +FILE = os.path.realpath(__file__) + +# Extract the directory in which this file resides: +DIR = os.path.dirname(FILE) + + +def gen(x, name): + """Generate fixture data and write to file. + + # Arguments + + * `x`: domain + * `name::str`: output filename + + # Examples + + ``` python + python> x = linspace(0.1, 100, 2001) + python> gen(x, './data.json') + ``` + """ + y = bradford.entropy(x) + + # Store data to be written to file as a dictionary: + data = { + "c": x.tolist(), + "expected": y.tolist() + } + + # Based on the script directory, create an output filepath: + filepath = os.path.join(DIR, name) + + # Write the data to the output filepath as JSON: + with open(filepath, "w", encoding="utf-8") as outfile: + json.dump(data, outfile) + + +def main(): + """Generate fixture data.""" + # Small shape parameter: + c = np.linspace(0.1, 1, 1000) + gen(c, "small_c.json") + + # Large shape parameter: + c = np.linspace(1, 10, 1000) + gen(c, "large_c.json") + + +if __name__ == "__main__": + main() diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/small_c.json b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/small_c.json new file mode 100644 index 000000000000..ecfc4623d139 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/fixtures/python/small_c.json @@ -0,0 +1 @@ +{"c": [0.1, 0.10090090090090091, 0.1018018018018018, 0.10270270270270271, 0.10360360360360361, 0.1045045045045045, 0.10540540540540541, 0.10630630630630632, 0.10720720720720721, 0.10810810810810811, 0.10900900900900902, 0.10990990990990991, 0.11081081081081082, 0.11171171171171172, 0.11261261261261261, 0.11351351351351352, 0.11441441441441443, 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-0.019732983249175995, -0.01975875932400306, -0.01978454036855143, -0.01981032637032193, -0.01983611731683871, -0.019861913195649505, -0.019887713994327316, -0.019913519700468063, -0.01993933030169165]} diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js new file mode 100644 index 000000000000..03ed498ec824 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js @@ -0,0 +1,117 @@ +/** +* @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 tape = require( 'tape' ); +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 entropy = require( './../lib' ); + + +// FIXTURES // + +var smallC = require( './fixtures/python/small_c.json' ); +var largeC = require( './fixtures/python/large_c.json' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof entropy, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'if provided `NaN` for `c`, the function returns `NaN`', function test( t ) { + var v = entropy( NaN ); + t.equal( isnan( v ), true, 'returns expected value' ); + t.end(); +}); + +tape( 'if provided `c <= 0`, the function returns `NaN`', function test( t ) { + var v; + + v = entropy( 0.0 ); + t.equal( isnan( v ), true, 'returns expected value' ); + + v = entropy( -1.0 ); + t.equal( isnan( v ), true, 'returns expected value' ); + + v = entropy( NINF ); + t.equal( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function returns the differential entropy of a Bradford distribution given small parameter `c`', function test( t ) { + var expected; + var delta; + var tol; + var i; + var c; + var y; + + expected = smallC.expected; + c = smallC.c; + for ( i = 0; i < expected.length; i++ ) { + y = entropy( c[i] ); + if ( y === expected[i] ) { + t.equal( y, expected[i], 'c: '+c[i]+', y: '+y+', expected: '+expected[i] ); + } else { + delta = abs( y - expected[ i ] ); + + /* + * NOTE: the tolerance is set high in this case due to: + * + * 1. The shape parameter being very small which causes differences in the nested log expression compared to the reference (SciPy) implementation. + * 2. The expected values being either very small. + */ + tol = 1523.0 * EPS * abs( expected[ i ] ); + t.ok( delta <= tol, 'within tolerance. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); + +tape( 'the function returns the differential entropy of a Bradford distribution given large parameter `c`', function test( t ) { + var expected; + var delta; + var tol; + var i; + var c; + var y; + + expected = largeC.expected; + c = largeC.c; + for ( i = 0; i < expected.length; i++ ) { + y = entropy( c[i] ); + if ( y === expected[i] ) { + t.equal( y, expected[i], 'c: '+c[i]+', y: '+y+', expected: '+expected[i] ); + } else { + delta = abs( y - expected[ i ] ); + tol = 45.0 * EPS * abs( expected[ i ] ); + t.ok( delta <= tol, 'within tolerance. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); + } + } + t.end(); +}); From afbbf9390f6a7e5cf0451984d097ba6b3e37088a Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 13:25:18 -0800 Subject: [PATCH 3/8] feat: add docs, benchmarks 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 status: passed - task: lint_package_json status: passed - task: lint_repl_help status: passed - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: passed - 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: 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: passed - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: na - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: na --- --- .../base/dists/bradford/entropy/README.md | 143 ++++++++++++++++++ .../bradford/entropy/benchmark/benchmark.js | 52 +++++++ .../docs/img/equation_bradford_entropy.svg | 68 +++++++++ .../base/dists/bradford/entropy/docs/repl.txt | 29 ++++ .../bradford/entropy/docs/types/index.d.ts | 60 ++++++++ .../dists/bradford/entropy/docs/types/test.ts | 44 ++++++ .../dists/bradford/entropy/examples/index.js | 31 ++++ .../base/dists/bradford/entropy/lib/index.js | 2 +- .../base/dists/bradford/entropy/package.json | 69 +++++++++ 9 files changed, 497 insertions(+), 1 deletion(-) create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/benchmark/benchmark.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/img/equation_bradford_entropy.svg create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/repl.txt create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/index.d.ts create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/test.ts create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/examples/index.js create mode 100644 lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/package.json diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md new file mode 100644 index 000000000000..634ee10ac611 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md @@ -0,0 +1,143 @@ + + +# Mean + +> [Bradford][bradford-distribution] distribution [differential entropy][entropy]. + + + +
+ +The [differential entropy][entropy] (in [nats][nats]) for a [Bradford][bradford-distribution] random variable is + + + +```math +h\left( X \right) = \frac{1}{2}\ln(1+c) - \ln\left(\frac{c}{\ln(1+c)}\right) +``` + + + + + +where `c` is the shape parameter. + +
+ + + + + +
+ +## Usage + +```javascript +var entropy = require( '@stdlib/stats/base/dists/bradford/entropy' ); +``` + +#### entropy( c ) + +Returns the [differential entropy][entropy] of a [Bradford][bradford-distribution] distribution with shape parameter `c` (in [nats][nats]). + +```javascript +var v = entropy( 0.2 ); +// returns ~-0.001 + +v = entropy( 10.0 ); +// returns ~-0.229 +``` + +If `c <= 0`, the function returns `NaN`. + +```javascript +var v = entropy( NaN ); +// returns NaN + +v = entropy( 0.0 ); +// returns NaN + +v = entropy( -1.5 ); +// returns NaN +``` + +
+ + + + + +
+ +
+ + + + + +
+ +## Examples + + + +```javascript +var uniform = require( '@stdlib/random/array/uniform' ); +var entropy = require( '@stdlib/stats/base/dists/bradford/entropy' ); + +var c = uniform( 10, 0.1, 10.0 ); + +var v; +var i; +for ( i = 0; i < c.length; i++ ) { + v = entropy( c[ i ] ); + console.log( 'c: %d, h(X;c): %d', c[ i ].toFixed( 4 ), v.toFixed( 4 ) ); +} +``` + +
+ + + + + +
+ +
+ + + + + +
+ +[bradford-distribution]: https://en.wikipedia.org/wiki/Bradford%27s_law + +[entropy]: https://en.wikipedia.org/wiki/Entropy_%28information_theory%29 + +[nats]: https://en.wikipedia.org/wiki/Nat_%28unit%29 + +
+ + diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/benchmark/benchmark.js new file mode 100644 index 000000000000..f6ccbf0abab9 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/benchmark/benchmark.js @@ -0,0 +1,52 @@ +/** +* @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 bench = require( '@stdlib/bench' ); +var uniform = require( '@stdlib/random/array/uniform' ); +var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var pkg = require( './../package.json' ).name; +var entropy = require( './../lib' ); + + +// MAIN // + +bench( pkg, function benchmark( b ) { + var c; + var y; + var i; + + c = uniform( 100, 0.1, 10.0 ); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + y = entropy( c[ i % c.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/bradford/entropy/docs/img/equation_bradford_entropy.svg b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/img/equation_bradford_entropy.svg new file mode 100644 index 000000000000..d0305a3682ae --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/img/equation_bradford_entropy.svg @@ -0,0 +1,68 @@ + +h left-parenthesis upper X right-parenthesis equals one half ln left-parenthesis 1 plus c right-parenthesis minus ln left-parenthesis StartFraction c Over ln left-parenthesis 1 plus c right-parenthesis EndFraction right-parenthesis + + + \ No newline at end of file diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/repl.txt b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/repl.txt new file mode 100644 index 000000000000..8c66bedcdb04 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/repl.txt @@ -0,0 +1,29 @@ + +{{alias}}( c ) + Returns the differential entropy of a Bradford distribution with shape + parameter `c`. + + If `c <= 0`, the function returns `NaN`. + + Parameters + ---------- + c: number + Shape parameter. + + Returns + ------- + out: number + Entropy. + + Examples + -------- + > var v = {{alias}}( 0.2 ) + ~-0.001 + > v = {{alias}}( 0.5 ) + ~-0.007 + > v = {{alias}}( 10.0 ) + ~-0.229 + + See Also + -------- + diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/index.d.ts new file mode 100644 index 000000000000..5d34e37b4408 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/index.d.ts @@ -0,0 +1,60 @@ +/* +* @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. +*/ + +// TypeScript Version: 4.1 + +/** +* Returns the differential entropy of a Bradford distribution. +* +* ## Notes +* +* - If `c <= 0`, the function returns `NaN`. +* +* @param c - shape parameter +* @returns differential entropy +* +* @example +* var v = entropy( 0.2 ); +* // returns ~-0.001 +* +* @example +* var v = entropy( 0.5 ); +* // returns ~-0.007 +* +* @example +* var v = entropy( 10.0 ); +* // returns ~-0.229 +* +* @example +* var v = entropy( 0.0 ); +* // returns NaN +* +* @example +* var v = entropy( -1.0 ); +* // returns NaN +* +* @example +* var v = entropy( NaN ); +* // returns NaN +*/ +declare function entropy( c: number ): number; + + +// EXPORTS // + +export = entropy; diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/test.ts b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/test.ts new file mode 100644 index 000000000000..73b13b540212 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/docs/types/test.ts @@ -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. +*/ + +import entropy = require( './index' ); + + +// TESTS // + +// The function returns a number... +{ + entropy( 0.3 ); // $ExpectType number +} + +// The compiler throws an error if the function is provided a value other than a number... +{ + entropy( true ); // $ExpectError + entropy( false ); // $ExpectError + entropy( null ); // $ExpectError + entropy( undefined ); // $ExpectError + entropy( '5' ); // $ExpectError + entropy( [] ); // $ExpectError + entropy( {} ); // $ExpectError + entropy( ( x: number ): number => x ); // $ExpectError +} + +// The compiler throws an error if the function is provided insufficient arguments... +{ + entropy(); // $ExpectError +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/examples/index.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/examples/index.js new file mode 100644 index 000000000000..32c01501da00 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/examples/index.js @@ -0,0 +1,31 @@ +/** +* @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'; + +var uniform = require( '@stdlib/random/array/uniform' ); +var entropy = require( './../lib' ); + +var c = uniform( 10, 0.1, 10.0 ); + +var v; +var i; +for ( i = 0; i < c.length; i++ ) { + v = entropy( c[ i ] ); + console.log( 'c: %d, h(X;c): %d', c[ i ].toFixed( 4 ), v.toFixed( 4 ) ); +} diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js index 004d68232d75..a4200bda3f73 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/lib/index.js @@ -26,7 +26,7 @@ * @example * var entropy = require( '@stdlib/stats/base/dists/bradford/entropy' ); * -* var v = entropy( 0.1 ); +* var v = entropy( 0.2 ); * // returns ~-0.001 * * v = entropy( 0.5 ); diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/package.json b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/package.json new file mode 100644 index 000000000000..f3b72a18bfac --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/package.json @@ -0,0 +1,69 @@ +{ + "name": "@stdlib/stats/base/dists/bradford/entropy", + "version": "0.0.0", + "description": "Bradford distribution differential entropy.", + "license": "Apache-2.0", + "author": { + "name": "The Stdlib Authors", + "url": "https://github.com/stdlib-js/stdlib/graphs/contributors" + }, + "contributors": [ + { + "name": "The Stdlib Authors", + "url": "https://github.com/stdlib-js/stdlib/graphs/contributors" + } + ], + "main": "./lib", + "directories": { + "benchmark": "./benchmark", + "doc": "./docs", + "example": "./examples", + "lib": "./lib", + "test": "./test" + }, + "types": "./docs/types", + "scripts": {}, + "homepage": "https://github.com/stdlib-js/stdlib", + "repository": { + "type": "git", + "url": "git://github.com/stdlib-js/stdlib.git" + }, + "bugs": { + "url": "https://github.com/stdlib-js/stdlib/issues" + }, + "dependencies": {}, + "devDependencies": {}, + "engines": { + "node": ">=0.10.0", + "npm": ">2.7.0" + }, + "os": [ + "aix", + "darwin", + "freebsd", + "linux", + "macos", + "openbsd", + "sunos", + "win32", + "windows" + ], + "keywords": [ + "stdlib", + "stdmath", + "statistics", + "stats", + "distribution", + "dist", + "bradford", + "bradford-distribution", + "parameter", + "shape-parameter", + "continuous", + "skewed", + "entropy", + "information", + "shannon", + "univariate" + ] +} From ce982a563b91cc02a8a5c955505a85fc68ee3ee8 Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 16:20:14 -0800 Subject: [PATCH 4/8] test: improve comment clarity on tolerance rationale --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: na - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: passed --- --- .../@stdlib/stats/base/dists/bradford/entropy/test/test.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js index 03ed498ec824..14c030ea1316 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js @@ -83,7 +83,7 @@ tape( 'the function returns the differential entropy of a Bradford distribution /* * NOTE: the tolerance is set high in this case due to: * - * 1. The shape parameter being very small which causes differences in the nested log expression compared to the reference (SciPy) implementation. + * 1. The shape parameter being very small which causes differences in the nested `ln` calculations compared to the reference (SciPy) implementation. * 2. The expected values being either very small. */ tol = 1523.0 * EPS * abs( expected[ i ] ); From 71a1d3294bc0408d21d248df16e96f7d6e792563 Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 17:19:08 -0800 Subject: [PATCH 5/8] docs: fix the description in README --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: passed - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: na --- --- .../@stdlib/stats/base/dists/bradford/entropy/README.md | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md index 634ee10ac611..f583fe0be9d9 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md @@ -69,13 +69,10 @@ v = entropy( 10.0 ); // returns ~-0.229 ``` -If `c <= 0`, the function returns `NaN`. +If provided `c <= 0`, the function returns `NaN`. ```javascript -var v = entropy( NaN ); -// returns NaN - -v = entropy( 0.0 ); +var v = entropy( 0.0 ); // returns NaN v = entropy( -1.5 ); From c1688f017e77123e1d325c4eaf45e7ddf0a3a39d Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 17:29:31 -0800 Subject: [PATCH 6/8] docs: improve clarity in README --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: passed - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: na --- --- .../@stdlib/stats/base/dists/bradford/entropy/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md index f583fe0be9d9..864e903c9fa3 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md @@ -69,7 +69,7 @@ v = entropy( 10.0 ); // returns ~-0.229 ``` -If provided `c <= 0`, the function returns `NaN`. +If provided a shape parameter `c <= 0`, the function returns `NaN`. ```javascript var v = entropy( 0.0 ); From 59408a96250dd411ba8cd7389e000701af2b8bcf Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 19:43:28 -0800 Subject: [PATCH 7/8] test: clarify tolerance rationale in comments --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: na - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: passed --- --- .../@stdlib/stats/base/dists/bradford/entropy/test/test.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js index 14c030ea1316..fe559641c86c 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/test/test.js @@ -83,8 +83,8 @@ tape( 'the function returns the differential entropy of a Bradford distribution /* * NOTE: the tolerance is set high in this case due to: * - * 1. The shape parameter being very small which causes differences in the nested `ln` calculations compared to the reference (SciPy) implementation. - * 2. The expected values being either very small. + * 1. The shape parameter being very small which causes differences in the nested `ln` calculations when compared to the test fixtures by SciPy. + * 2. The expected values being very small. */ tol = 1523.0 * EPS * abs( expected[ i ] ); t.ok( delta <= tol, 'within tolerance. c: '+c[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' ); From 29a8860779cf9d5a1576135b2c585be21c2d5f1b Mon Sep 17 00:00:00 2001 From: Karan Anand Date: Wed, 19 Feb 2025 20:00:54 -0800 Subject: [PATCH 8/8] docs: fix typo in title --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- type: pre_push_report description: Results of running various checks prior to pushing changes. report: - task: run_javascript_examples status: na - task: run_c_examples status: na - task: run_cpp_examples status: na - task: run_javascript_readme_examples status: passed - task: run_c_benchmarks status: na - task: run_cpp_benchmarks status: na - task: run_fortran_benchmarks status: na - task: run_javascript_benchmarks status: na - task: run_julia_benchmarks status: na - task: run_python_benchmarks status: na - task: run_r_benchmarks status: na - task: run_javascript_tests status: na --- --- .../@stdlib/stats/base/dists/bradford/entropy/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md index 864e903c9fa3..2995e036e8ee 100644 --- a/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md +++ b/lib/node_modules/@stdlib/stats/base/dists/bradford/entropy/README.md @@ -18,7 +18,7 @@ limitations under the License. --> -# Mean +# Entropy > [Bradford][bradford-distribution] distribution [differential entropy][entropy].