diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/README.md b/lib/node_modules/@stdlib/stats/incr/nanminabs/README.md new file mode 100644 index 000000000000..944a9acc5a07 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/README.md @@ -0,0 +1,143 @@ + + +# incrnanminabs + +> Compute a minimum absolute value incrementally, ignoring NaN values. + +
+ +## Usage + +```javascript +var incrnanminabs = require( '@stdlib/stats/incr/nanminabs' ); +``` + +#### incrnanminabs() + +Returns an accumulator `function` which incrementally computes a minimum absolute value, ignoring NaN values. + +```javascript +var accumulator = incrnanminabs(); +``` + +#### accumulator( \[x] ) + +If provided an input value `x`, the accumulator function returns an updated minimum absolute value. If not provided an input value `x`, the accumulator function returns the current minimum absolute value. + +```javascript +var accumulator = incrnanminabs(); + +var min = accumulator( 2.0 ); +// returns 2.0 + +min = accumulator( 1.0 ); +// returns 1.0 + +min = accumulator( NaN ); +// returns 1.0 + +min = accumulator( -3.0 ); +// returns 1.0 + +min = accumulator(); +// returns 1.0 +``` + +
+ + + +
+ +## Notes + +- Input values are **not** type checked. If non-numeric inputs are possible, you are advised to type check and handle accordingly **before** passing the value to the accumulator function. + +
+ + + +
+ +## Examples + + + +```javascript +var randu = require( '@stdlib/random/base/randu' ); +var incrnanminabs = require( '@stdlib/stats/incr/nanminabs' ); + +var accumulator; +var v; +var i; + +// Initialize an accumulator: +accumulator = incrnanminabs(); + +// For each simulated datum, update the minimum absolute value... +for ( i = 0; i < 100; i++ ) { + if ( randu() < 0.2 ) { + v = NaN; + } else { + v = ( randu() * 100.0 ) - 50.0; + } + accumulator( v ); +} +console.log( accumulator() ); +``` + +
+ + + + + +
+ +* * * + +## See Also + +- [`@stdlib/stats/incr/minabs`][@stdlib/stats/incr/minabs]: compute a maximum absolute value incrementally. +- [`@stdlib/stats/incr/maxabs`][@stdlib/stats/incr/maxabs]: compute a minimum value incrementally. +- [`@stdlib/stats/incr/min`][@stdlib/stats/incr/min]: compute a moving minimum absolute value incrementally. + +
+ + + + + +
+ + + +[@stdlib/stats/incr/maxabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/incr/maxabs + +[@stdlib/stats/incr/min]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/incr/min + +[@stdlib/stats/incr/minabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/incr/minabs + + + +
+ + diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/incr/nanminabs/benchmark/benchmark.js new file mode 100644 index 000000000000..d55774ca9375 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/benchmark/benchmark.js @@ -0,0 +1,69 @@ +/** +* @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 randu = require( '@stdlib/random/base/randu' ); +var pkg = require( './../package.json' ).name; +var incrnanminabs = require( './../lib' ); + + +// MAIN // + +bench( pkg, function benchmark( b ) { + var f; + var i; + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + f = incrnanminabs(); + if ( typeof f !== 'function' ) { + b.fail( 'should return a function' ); + } + } + b.toc(); + if ( typeof f !== 'function' ) { + b.fail( 'should return a function' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); + +bench( pkg+'::accumulator', function benchmark( b ) { + var acc; + var v; + var i; + + acc = incrnanminabs(); + + b.tic(); + for ( i = 0; i < b.iterations; i++ ) { + v = acc( randu()-0.5 ); + if ( v !== v ) { + b.fail( 'should not return NaN' ); + } + } + b.toc(); + if ( v !== v ) { + b.fail( 'should not return NaN' ); + } + b.pass( 'benchmark finished' ); + b.end(); +}); diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/repl.txt b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/repl.txt new file mode 100644 index 000000000000..8fd45bc6b2de --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/repl.txt @@ -0,0 +1,32 @@ + +{{alias}}() + Returns an accumulator function which incrementally computes a minimum + absolute value, ignoring `NaN` values. + + If provided a value, the accumulator function returns an updated minimum + absolute value. If not provided a value, the accumulator function returns + the current minimum absolute value. + + Returns + ------- + acc: Function + Accumulator function. + + Examples + -------- + > var accumulator = {{alias}}(); + > var m = accumulator() + null + > m = accumulator( 3.14 ) + 3.14 + > m = accumulator( NaN ) + 3.14 + > m = accumulator( -5.0 ) + 3.14 + > m = accumulator( 10.1 ) + 3.14 + > m = accumulator() + 3.14 + + See Also + -------- diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/index.d.ts new file mode 100644 index 000000000000..d23bb2ca7ed4 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/index.d.ts @@ -0,0 +1,62 @@ +/* +* @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 + +/// + +/** +* If provided a value, returns an updated minimum absolute value; otherwise, returns the current minimum absolute value. +* +* @param x - value +* @returns minimum absolute value +*/ +type accumulator = ( x?: number ) => number | null; + +/** +* Returns an accumulator function which incrementally computes a minimum absolute value, ignoring `NaN` values. +* +* @returns accumulator function +* +* @example +* var accumulator = incrnanminabs(); +* +* var v = accumulator(); +* // returns null +* +* v = accumulator( 2.0 ); +* // returns 2.0 +* +* v = accumulator( -3.0 ); +* // returns 2.0 +* +* v = accumulator( NaN ); +* // returns 2.0 +* +* v = accumulator( 1.0 ); +* // returns 1.0 +* +* v = accumulator(); +* // returns 1.0 +*/ +declare function incrnanminabs(): accumulator; + + +// EXPORTS // + +export = incrnanminabs; diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/test.ts b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/test.ts new file mode 100644 index 000000000000..9d1a5b71d410 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/docs/types/test.ts @@ -0,0 +1,61 @@ +/* +* @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 incrnanminabs = require( './index' ); + + +// TESTS // + +// The function returns an accumulator function... +{ + incrnanminabs(); // $ExpectType accumulator +} + +// The compiler throws an error if the function is provided arguments... +{ + incrnanminabs( '5' ); // $ExpectError + incrnanminabs( 5 ); // $ExpectError + incrnanminabs( true ); // $ExpectError + incrnanminabs( false ); // $ExpectError + incrnanminabs( null ); // $ExpectError + incrnanminabs( undefined ); // $ExpectError + incrnanminabs( [] ); // $ExpectError + incrnanminabs( {} ); // $ExpectError + incrnanminabs( ( x: number ): number => x ); // $ExpectError +} + +// The function returns an accumulator function which returns an accumulated result... +{ + const acc = incrnanminabs(); + + acc(); // $ExpectType number | null + acc( 3.14 ); // $ExpectType number | null +} + +// The compiler throws an error if the returned accumulator function is provided invalid arguments... +{ + const acc = incrnanminabs(); + + acc( '5' ); // $ExpectError + acc( true ); // $ExpectError + acc( false ); // $ExpectError + acc( null ); // $ExpectError + acc( [] ); // $ExpectError + acc( {} ); // $ExpectError + acc( ( x: number ): number => x ); // $ExpectError +} diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/examples/index.js b/lib/node_modules/@stdlib/stats/incr/nanminabs/examples/index.js new file mode 100644 index 000000000000..fc52fc0ce0b4 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/examples/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'; + +var randu = require( '@stdlib/random/base/randu' ); +var incrnanminabs = require( './../lib' ); + +var accumulator; +var min; +var v; +var i; + +// Initialize an accumulator: +accumulator = incrnanminabs(); + +// For each simulated datum, update the min absolute value... +console.log( '\nValue\tMinAbs\n' ); +for ( i = 0; i < 100; i++ ) { + if ( randu() < 0.2 ) { + v = NaN; + } else { + v = ( randu() * 100.0 ) - 50.0; + } + min = accumulator( v ); + console.log( '%d\t%d', v.toFixed( 3 ), ( min === null ) ? NaN : min.toFixed( 3 ) ); +} +console.log( '\nFinal minimum absolute value: %d\n', accumulator() ); diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/index.js b/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/index.js new file mode 100644 index 000000000000..8862fb35392f --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/index.js @@ -0,0 +1,57 @@ +/** +* @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'; + +/** +* Compute a minimum absolute value incrementally, ignoring `NaN` values. +* +* @module @stdlib/stats/incr/nanminabs +* +* @example +* var incrnanminabs = require( '@stdlib/stats/incr/nanminabs' ); +* +* var accumulator = incrnanminabs(); +* +* var min = accumulator(); +* // returns null +* +* min = accumulator( 3.14 ); +* // returns 3.14 +* +* min = accumulator( NaN ); +* // returns 3.14 +* +* min = accumulator( -5.0 ); +* // returns 3.14 +* +* min = accumulator( 10.1 ); +* // returns 3.14 +* +* min = accumulator(); +* // returns 3.14 +*/ + +// MODULES // + +var main = require( './main.js' ); + + +// EXPORTS // + +module.exports = main; diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/main.js b/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/main.js new file mode 100644 index 000000000000..16512dd280d3 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/lib/main.js @@ -0,0 +1,77 @@ +/** +* @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 incrminabs = require( '@stdlib/stats/incr/minabs' ); + + +// MAIN // + +/** +* Returns an accumulator function which incrementally computes a minimum absolute value, ignoring `NaN` values. +* +* @returns {Function} accumulator function +* +* @example +* var accumulator = incrnanminabs(); +* +* var min = accumulator(); +* // returns null +* +* min = accumulator( 3.14 ); +* // returns 3.14 +* +* min = accumulator( NaN ); +* // returns 3.14 +* +* min = accumulator( -5.0 ); +* // returns 3.14 +* +* min = accumulator( 10.1 ); +* // returns 3.14 +* +* min = accumulator(); +* // returns 3.14 +*/ +function incrnanminabs() { + var minabs = incrminabs(); + return accumulator; + + /** + * If provided a value, the accumulator function returns an updated minimum absolute value. If not provided a value, the accumulator function returns the current minimum absolute value. + * + * @private + * @param {number} [x] - new value + * @returns {(number|null)} minimum absolute value or null + */ + function accumulator( x ) { + if ( arguments.length === 0 || isnan( x ) ) { + return minabs(); + } + return minabs( x ); + } +} + + +// EXPORTS // + +module.exports = incrnanminabs; diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/package.json b/lib/node_modules/@stdlib/stats/incr/nanminabs/package.json new file mode 100644 index 000000000000..724364a915f3 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/package.json @@ -0,0 +1,69 @@ +{ + "name": "@stdlib/stats/incr/minabs", + "version": "0.0.0", + "description": "Compute a minimum absolute value incrementally.", + "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", + "mathematics", + "math", + "minimum", + "min", + "abs", + "absolute", + "range", + "extremes", + "domain", + "extent", + "incremental", + "accumulator" + ] +} diff --git a/lib/node_modules/@stdlib/stats/incr/nanminabs/test/test.js b/lib/node_modules/@stdlib/stats/incr/nanminabs/test/test.js new file mode 100644 index 000000000000..8bcdb959d3da --- /dev/null +++ b/lib/node_modules/@stdlib/stats/incr/nanminabs/test/test.js @@ -0,0 +1,125 @@ +/** +* @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 isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' ); +var abs = require( '@stdlib/math/base/special/abs' ); +var incrnanminabs = require( './../lib' ); + + +// TESTS // + +tape( 'main export is a function', function test( t ) { + t.ok( true, __filename ); + t.strictEqual( typeof incrnanminabs, 'function', 'main export is a function' ); + t.end(); +}); + +tape( 'the function returns an accumulator function', function test( t ) { + t.equal( typeof incrnanminabs(), 'function', 'returns a function' ); + t.end(); +}); + +tape( 'if not provided any values, the initial returned minimum absolute value is `null`', function test( t ) { + var acc = incrnanminabs(); + t.equal( acc(), null, 'returns null' ); + t.end(); +}); + +tape( 'the accumulator function incrementally computes a minimum absolute value', function test( t ) { + var expected; + var actual; + var data; + var acc; + var min; + var ad; + var N; + var d; + var i; + + data = [ 2.0, -3.0, 2.0, -4.0, 3.0, 4.0 ]; + N = data.length; + + expected = []; + actual = []; + + acc = incrnanminabs(); + + min = data[ 0 ]; + for ( i = 0; i < N; i++ ) { + d = data[ i ]; + ad = abs( d ); + if ( ad < min ) { + min = ad; + } + expected.push( min ); + actual.push( acc( d ) ); + } + t.deepEqual( actual, expected, 'returns expected incremental results' ); + t.end(); +}); + +tape( 'if not provided an input value, the accumulator function returns the current minimum absolute value', function test( t ) { + var data; + var acc; + var i; + + data = [ 2.0, -3.0, 1.0 ]; + acc = incrnanminabs(); + for ( i = 0; i < data.length; i++ ) { + acc( data[ i ] ); + } + t.equal( acc(), 1.0, 'returns expected value' ); + t.end(); +}); + +tape( 'the accumulator function correctly handles signed zeros', function test( t ) { + var acc; + var v; + + acc = incrnanminabs(); + + v = acc( -0.0 ); + t.equal( isPositiveZero( v ), true, 'returns expected value' ); + + v = acc( 0.0 ); + t.equal( isPositiveZero( v ), true, 'returns expected value' ); + + v = acc( -0.0 ); + t.equal( isPositiveZero( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `NaN`, the accumulator function ignores `NaN` values and returns current minimum absolute value', function test( t ) { + var data; + var acc; + var i; + + data = [ 2.0, NaN, 1.0, -2.0, 3.0, -4.0, 5.0, -6.0, 1.0, 7.0, NaN ]; + acc = incrnanminabs(); + for ( i = 0; i < data.length; i++ ) { + acc( data[ i ] ); + } + t.equal( acc(), 1.0, 'returns expected value' ); + t.end(); +});