From 93dc87f2add43156ac455fa273265ef65937ded6 Mon Sep 17 00:00:00 2001 From: Amish Chhajed Date: Thu, 20 Mar 2025 09:16:29 +0000 Subject: [PATCH 01/12] add support for accessor arrays and refactor stats/base/stdevpn --- .../@stdlib/stats/base/stdevpn/README.md | 40 +++++++------------ .../stats/base/stdevpn/benchmark/benchmark.js | 15 ++++--- .../stdevpn/benchmark/benchmark.ndarray.js | 15 ++++--- .../@stdlib/stats/base/stdevpn/docs/repl.txt | 29 ++++++-------- .../stats/base/stdevpn/docs/types/index.d.ts | 19 +++++---- .../stats/base/stdevpn/docs/types/test.ts | 3 ++ .../stats/base/stdevpn/examples/index.js | 14 ++----- 7 files changed, 60 insertions(+), 75 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/README.md b/lib/node_modules/@stdlib/stats/base/stdevpn/README.md index c92973fb6e8c..e267c935bdd7 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/README.md +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/README.md @@ -114,17 +114,16 @@ The function has the following parameters: - **N**: number of indexed elements. - **correction**: degrees of freedom adjustment. Setting this parameter to a value other than `0` has the effect of adjusting the divisor during the calculation of the [standard deviation][standard-deviation] according to `N-c` where `c` corresponds to the provided degrees of freedom adjustment. When computing the [standard deviation][standard-deviation] of a population, setting this parameter to `0` is the standard choice (i.e., the provided array contains data constituting an entire population). When computing the corrected sample [standard deviation][standard-deviation], setting this parameter to `1` is the standard choice (i.e., the provided array contains data sampled from a larger population; this is commonly referred to as Bessel's correction). - **x**: input [`Array`][mdn-array] or [`typed array`][mdn-typed-array]. -- **stride**: index increment for `x`. +- **strideX**: stride length for `x`. -The `N` and `stride` parameters determine which elements in `x` are accessed at runtime. For example, to compute the [standard deviation][standard-deviation] of every other element in `x`, +The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute the [standard deviation][standard-deviation] of every other element in `x`, ```javascript var floor = require( '@stdlib/math/base/special/floor' ); var x = [ 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0 ]; -var N = floor( x.length / 2 ); -var v = stdevpn( N, 1, x, 2 ); +var v = stdevpn( 4, 1, x, 2 ); // returns 2.5 ``` @@ -134,18 +133,15 @@ Note that indexing is relative to the first index. To introduce an offset, use [ ```javascript var Float64Array = require( '@stdlib/array/float64' ); -var floor = require( '@stdlib/math/base/special/floor' ); var x0 = new Float64Array( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ] ); var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element -var N = floor( x0.length / 2 ); - -var v = stdevpn( N, 1, x1, 2 ); +var v = stdevpn( 4, 1, x1, 2 ); // returns 2.5 ``` -#### stdevpn.ndarray( N, correction, x, stride, offset ) +#### stdevpn.ndarray( N, correction, x, strideX, offsetX ) Computes the [standard deviation][standard-deviation] of a strided array using a two-pass algorithm and alternative indexing semantics. @@ -158,17 +154,14 @@ var v = stdevpn.ndarray( x.length, 1, x, 1, 0 ); The function has the following additional parameters: -- **offset**: starting index for `x`. +- **offsetX**: starting index for `x`. -While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying `buffer`, the `offset` parameter supports indexing semantics based on a starting index. For example, to calculate the [standard deviation][standard-deviation] for every other value in `x` starting from the second value +While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to calculate the [standard deviation][standard-deviation] for every other element in the strided array starting from the second element ```javascript -var floor = require( '@stdlib/math/base/special/floor' ); - var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ]; -var N = floor( x.length / 2 ); -var v = stdevpn.ndarray( N, 1, x, 2, 1 ); +var v = stdevpn.ndarray( 4, 1, x, 2, 1 ); // returns 2.5 ``` @@ -182,6 +175,7 @@ var v = stdevpn.ndarray( N, 1, x, 2, 1 ); - If `N <= 0`, both functions return `NaN`. - If `N - c` is less than or equal to `0` (where `c` corresponds to the provided degrees of freedom adjustment), both functions return `NaN`. +- Both functions support array-like objects having getter and setter accessors for array element access (e.g., [`@stdlib/array/base/accessor`][@stdlib/array/base/accessor]). - Depending on the environment, the typed versions ([`dstdevpn`][@stdlib/stats/base/dstdevpn], [`sstdevpn`][@stdlib/stats/base/sstdevpn], etc.) are likely to be significantly more performant. @@ -195,18 +189,12 @@ var v = stdevpn.ndarray( N, 1, x, 2, 1 ); ```javascript -var randu = require( '@stdlib/random/base/randu' ); -var round = require( '@stdlib/math/base/special/round' ); -var Float64Array = require( '@stdlib/array/float64' ); +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); var stdevpn = require( '@stdlib/stats/base/stdevpn' ); -var x; -var i; - -x = new Float64Array( 10 ); -for ( i = 0; i < x.length; i++ ) { - x[ i ] = round( (randu()*100.0) - 50.0 ); -} +var x = discreteUniform( 10, -50, 50, { + 'dtype': 'float64' +}); console.log( x ); var v = stdevpn( x.length, 1, x, 1 ); @@ -258,6 +246,8 @@ console.log( v ); [mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray +[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor + [@stdlib/stats/base/dstdevpn]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/dstdevpn [@stdlib/stats/base/sstdevpn]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/sstdevpn diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js index ca9fb4847ef4..fcc285292058 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js @@ -21,12 +21,17 @@ // MODULES // var bench = require( '@stdlib/bench' ); -var randu = require( '@stdlib/random/base/randu' ); +var uniform = require( '@stdlib/random/array/uniform' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var pow = require( '@stdlib/math/base/special/pow' ); var pkg = require( './../package.json' ).name; var stdevpn = require( './../lib/stdevpn.js' ); +// VARIABLES // + +var options = { + 'dtype': 'generic' +}; // FUNCTIONS // @@ -38,13 +43,7 @@ var stdevpn = require( './../lib/stdevpn.js' ); * @returns {Function} benchmark function */ function createBenchmark( len ) { - var x; - var i; - - x = []; - for ( i = 0; i < len; i++ ) { - x.push( ( randu()*20.0 ) - 10.0 ); - } + var x = uniform( len, -10, 10, options ); return benchmark; function benchmark( b ) { diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js index 3d83a72ce16b..44bed5cd49c9 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js @@ -21,12 +21,17 @@ // MODULES // var bench = require( '@stdlib/bench' ); -var randu = require( '@stdlib/random/base/randu' ); +var uniform = require( '@stdlib/random/array/uniform' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var pow = require( '@stdlib/math/base/special/pow' ); var pkg = require( './../package.json' ).name; var stdevpn = require( './../lib/ndarray.js' ); +// VARIABLES // + +var options = { + 'dtype': 'generic' +}; // FUNCTIONS // @@ -38,13 +43,7 @@ var stdevpn = require( './../lib/ndarray.js' ); * @returns {Function} benchmark function */ function createBenchmark( len ) { - var x; - var i; - - x = []; - for ( i = 0; i < len; i++ ) { - x.push( ( randu()*20.0 ) - 10.0 ); - } + var x = uniform( len, -10, 10, options ); return benchmark; function benchmark( b ) { diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt index 2bd1bd65bf73..2f91ae5a9a57 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt @@ -1,9 +1,9 @@ -{{alias}}( N, correction, x, stride ) +{{alias}}( N, correction, x, strideX ) Computes the standard deviation of a strided array using a two-pass algorithm. - The `N` and `stride` parameters determine which elements in `x` are accessed + The `N` and stride parameters determine which elements in the strided array are accessed at runtime. Indexing is relative to the first index. To introduce an offset, use a typed @@ -31,8 +31,8 @@ x: Array|TypedArray Input array. - stride: integer - Index increment. + strideX: integer + Stride length. Returns ------- @@ -46,27 +46,23 @@ > {{alias}}( x.length, 1, x, 1 ) ~2.0817 - // Using `N` and `stride` parameters: + // Using `N` and stride parameters: > x = [ -2.0, 1.0, 1.0, -5.0, 2.0, -1.0 ]; - > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 ); - > var stride = 2; - > {{alias}}( N, 1, x, stride ) + > {{alias}}( 3, 1, x, 2 ) ~2.0817 // Using view offsets: > var x0 = new {{alias:@stdlib/array/float64}}( [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0 ] ); > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); - > N = {{alias:@stdlib/math/base/special/floor}}( x0.length / 2 ); - > stride = 2; - > {{alias}}( N, 1, x1, stride ) + > {{alias}}( 3, 1, x1, 2 ) ~2.0817 -{{alias}}.ndarray( N, correction, x, stride, offset ) +{{alias}}.ndarray( N, correction, x, strideX, offsetX ) Computes the standard deviation of a strided array using a two-pass algorithm and alternative indexing semantics. While typed array views mandate a view offset based on the underlying - buffer, the `offset` parameter supports indexing semantics based on a + buffer, the offsetX parameter supports indexing semantics based on a starting index. Parameters @@ -89,10 +85,10 @@ x: Array|TypedArray Input array. - stride: integer + strideX: integer Index increment. - offset: integer + offsetX: integer Starting index. Returns @@ -109,8 +105,7 @@ // Using offset parameter: > var x = [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0 ]; - > var N = {{alias:@stdlib/math/base/special/floor}}( x.length / 2 ); - > {{alias}}.ndarray( N, 1, x, 2, 1 ) + > {{alias}}.ndarray( 3, 1, x, 2, 1 ) ~2.0817 See Also diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/index.d.ts index 8dbcca5ec960..335d8678a1cd 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/index.d.ts +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/index.d.ts @@ -20,7 +20,12 @@ /// -import { NumericArray } from '@stdlib/types/array'; +import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array'; + +/** +* Input array. +*/ +type InputArray = NumericArray | Collection | AccessorArrayLike; /** * Interface describing `stdevpn`. @@ -32,7 +37,7 @@ interface Routine { * @param N - number of indexed elements * @param correction - degrees of freedom adjustment * @param x - input array - * @param stride - stride length + * @param strideX - stride length * @returns standard deviation * * @example @@ -41,7 +46,7 @@ interface Routine { * var v = stdevpn( x.length, 1, x, 1 ); * // returns ~2.0817 */ - ( N: number, correction: number, x: NumericArray, stride: number ): number; + ( N: number, correction: number, x: InputArray, strideX: number ): number; /** * Computes the standard deviation of a strided array using a two-pass algorithm and alternative indexing semantics. @@ -49,8 +54,8 @@ interface Routine { * @param N - number of indexed elements * @param correction - degrees of freedom adjustment * @param x - input array - * @param stride - stride length - * @param offset - starting index + * @param strideX - stride length + * @param offsetX - starting index * @returns standard deviation * * @example @@ -59,7 +64,7 @@ interface Routine { * var v = stdevpn.ndarray( x.length, 1, x, 1, 0 ); * // returns ~2.0817 */ - ndarray( N: number, correction: number, x: NumericArray, stride: number, offset: number ): number; + ndarray( N: number, correction: number, x: InputArray, strideX: number, offsetX: number ): number; } /** @@ -68,7 +73,7 @@ interface Routine { * @param N - number of indexed elements * @param correction - degrees of freedom adjustment * @param x - input array -* @param stride - stride length +* @param strideX - stride length * @returns standard deviation * * @example diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts index f97896ba0fb5..ce73b92ac8d6 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts @@ -16,6 +16,7 @@ * limitations under the License. */ +import AccessorArray = require( '@stdlib/array/base/accessor' ); import stdevpn = require( './index' ); @@ -26,6 +27,7 @@ import stdevpn = require( './index' ); const x = new Float64Array( 10 ); stdevpn( x.length, 1, x, 1 ); // $ExpectType number + stdevpn( x.length, new AccessorArray( x ), 1 ); // $ExpectType number } // The compiler throws an error if the function is provided a first argument which is not a number... @@ -101,6 +103,7 @@ import stdevpn = require( './index' ); const x = new Float64Array( 10 ); stdevpn.ndarray( x.length, 1, x, 1, 0 ); // $ExpectType number + stdevpn( x.length, new AccessorArray( x ), 1 ); // $ExpectType number } // The compiler throws an error if the `ndarray` method is provided a first argument which is not a number... diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/examples/index.js b/lib/node_modules/@stdlib/stats/base/stdevpn/examples/index.js index b48359d1ce23..7b8ab6764df6 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/examples/index.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/examples/index.js @@ -18,18 +18,12 @@ 'use strict'; -var randu = require( '@stdlib/random/base/randu' ); -var round = require( '@stdlib/math/base/special/round' ); -var Float64Array = require( '@stdlib/array/float64' ); +var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); var stdevpn = require( './../lib' ); -var x; -var i; - -x = new Float64Array( 10 ); -for ( i = 0; i < x.length; i++ ) { - x[ i ] = round( (randu()*100.0) - 50.0 ); -} +var x = discreteUniform( 10, -50, 50, { + 'dtype': 'float64' +}); console.log( x ); var v = stdevpn( x.length, 1, x, 1 ); From 61b2c01f9f3a4961b11309c333bb5c9124da1072 Mon Sep 17 00:00:00 2001 From: Amish Chhajed Date: Thu, 20 Mar 2025 11:44:22 +0000 Subject: [PATCH 02/12] refactor and add protocol support to stats/base/stdevpn --- .../stats/base/stdevpn/lib/accessors.js | 88 +++++++++++++++++++ .../@stdlib/stats/base/stdevpn/lib/index.js | 4 +- .../@stdlib/stats/base/stdevpn/lib/ndarray.js | 23 ++--- .../@stdlib/stats/base/stdevpn/lib/stdevpn.js | 11 ++- .../stats/base/stdevpn/test/test.ndarray.js | 38 ++++---- .../stats/base/stdevpn/test/test.stdevpn.js | 38 ++++---- 6 files changed, 139 insertions(+), 63 deletions(-) create mode 100644 lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js new file mode 100644 index 000000000000..a0525109d6b1 --- /dev/null +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js @@ -0,0 +1,88 @@ +/** +* @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 sqrt = require( '@stdlib/math/base/special/sqrt' ); + +// MAIN // +/** + * Computes the standard deviation of a strided array using a two-pass algorithm. + * + * @private + * @param {PositiveInteger} N - number of indexed elements + * @param {number} correction - degrees of freedom adjustment + * @param {Object} x - input array object + * @param {Collection} x.data - input array data + * @param {Array} x.accessors - array element accessors + * @param {integer} strideX - strideX length + * @param {NonNegativeInteger} offsetX - starting index + * @returns {number} standard deviation + * @example + * var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); + * var arraylike2object = require( '@stdlib/array/base/arraylike2object' ); + * + * var x = toAccessorArray( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ] ); + * + * var v = stdevpn( 4, 1, arraylike2object( x ), 2, 1 ); + * // returns 2.5 + */ +function stdevpn( N, correction, x, strideX, offsetX) { + var xbuf; + var xget; + var ix; + var mean; + var M2; + var delta; + var v; + var i; + + // Cache reference to array data: + xbuf = x.data; + + // Cache a reference to the element accessor: + xget = x.accessors[ 0 ]; + + if ( N <= 0 || (N - correction) <= 0) { + return NaN; + } + + mean = 0.0; + M2 = 0.0; + + ix = offsetX; + for ( i = 0; i < N; i++ ) { + v = xget( xbuf, ix ); + + delta = v - mean; + mean += delta / (i + 1); + M2 += delta * (v - mean); + + ix += strideX; + } + + var variance = M2 / (N - correction); + + return sqrt( variance ); +} +// EXPORTS // + +module.exports = stdevpn; diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js index 56f4b5a671e7..520373413898 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js @@ -32,13 +32,11 @@ * // returns ~2.0817 * * @example -* var floor = require( '@stdlib/math/base/special/floor' ); * var stdevpn = require( '@stdlib/stats/base/stdevpn' ); * * var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ]; -* var N = floor( x.length / 2 ); * -* var v = stdevpn.ndarray( N, 1, x, 2, 1 ); +* var v = stdevpn.ndarray( 8, 1, x, 2, 1 ); * // returns 2.5 */ diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js index 05e72b6cffa1..d4e99e6c2ee1 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js @@ -22,7 +22,8 @@ var variancepn = require( '@stdlib/stats/base/variancepn' ).ndarray; var sqrt = require( '@stdlib/math/base/special/sqrt' ); - +var arraylike2object = require( '@stdlib/array/base/arraylike2object' ); +var accessors = require( './accessors.js' ); // MAIN // @@ -32,21 +33,23 @@ var sqrt = require( '@stdlib/math/base/special/sqrt' ); * @param {PositiveInteger} N - number of indexed elements * @param {number} correction - degrees of freedom adjustment * @param {NumericArray} x - input array -* @param {integer} stride - stride length -* @param {NonNegativeInteger} offset - starting index +* @param {integer} strideX - stride length +* @param {NonNegativeInteger} offsetX - starting index * @returns {number} standard deviation * * @example -* var floor = require( '@stdlib/math/base/special/floor' ); -* * var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ]; -* var N = floor( x.length / 2 ); -* -* var v = stdevpn( N, 1, x, 2, 1 ); +* var v = stdevpn( 4, 1, x, 2, 1 ); * // returns 2.5 */ -function stdevpn( N, correction, x, stride, offset ) { - return sqrt( variancepn( N, correction, x, stride, offset ) ); +function stdevpn( N, correction, x, strideX, offsetX ) { + var o; + + o = arraylike2object( x ); + if ( o.accessorProtocol ) { + return accessors( N, correction, o, strideX, offsetX ); + } + return sqrt( variancepn( N, correction, x, strideX, offsetX ) ); } diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js index 34337c268859..1aaff12d1606 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js @@ -20,9 +20,8 @@ // MODULES // -var variancepn = require( '@stdlib/stats/base/variancepn' ); -var sqrt = require( '@stdlib/math/base/special/sqrt' ); - +var stride2offset = require( '@stdlib/strided/base/stride2offset' ); +var ndarray = require( './ndarray.js' ); // MAIN // @@ -32,7 +31,7 @@ var sqrt = require( '@stdlib/math/base/special/sqrt' ); * @param {PositiveInteger} N - number of indexed elements * @param {number} correction - degrees of freedom adjustment * @param {NumericArray} x - input array -* @param {integer} stride - stride length +* @param {integer} strideX - stride length * @returns {number} standard deviation * * @example @@ -41,8 +40,8 @@ var sqrt = require( '@stdlib/math/base/special/sqrt' ); * var v = stdevpn( x.length, 1, x, 1 ); * // returns ~2.0817 */ -function stdevpn( N, correction, x, stride ) { - return sqrt( variancepn( N, correction, x, stride ) ); +function stdevpn( N, correction, x, strideX ) { + return ndarray( N, correction, x, strideX, stride2offset( N, strideX ) ); } diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js index 196122b721b5..8a9757e89a29 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js @@ -21,7 +21,7 @@ // MODULES // var tape = require( 'tape' ); -var floor = require( '@stdlib/math/base/special/floor' ); +var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var sqrt = require( '@stdlib/math/base/special/sqrt' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var stdevpn = require( './../lib/ndarray.js' ); @@ -45,15 +45,15 @@ tape( 'the function calculates the population standard deviation of a strided ar var v; x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; - v = stdevpn( x.length, 0, x, 1, 0 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); x = [ -4.0, -4.0 ]; - v = stdevpn( x.length, 0, x, 1, 0 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); x = [ NaN, 4.0 ]; - v = stdevpn( x.length, 0, x, 1, 0 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -64,15 +64,15 @@ tape( 'the function calculates the sample standard deviation of a strided array' var v; x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; - v = stdevpn( x.length, 1, x, 1, 0 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); x = [ -4.0, -4.0 ]; - v = stdevpn( x.length, 1, x, 1, 0 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); x = [ NaN, 4.0 ]; - v = stdevpn( x.length, 1, x, 1, 0 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -84,10 +84,10 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( 0, 1, x, 1, 0 ); + v = stdevpn( 0, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); - v = stdevpn( -1, 1, x, 1, 0 ); + v = stdevpn( -1, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -99,7 +99,7 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns a populat x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( 1, 0, x, 1, 0 ); + v = stdevpn( 1, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); t.end(); @@ -111,17 +111,16 @@ tape( 'if provided a `correction` parameter yielding `N-correction` less than or x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( x.length, x.length, x, 1, 0 ); + v = stdevpn( x.length, x.length, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); - v = stdevpn( x.length, x.length+1, x, 1, 0 ); + v = stdevpn( x.length, x.length+1, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); }); tape( 'the function supports a `stride` parameter', function test( t ) { - var N; var x; var v; @@ -136,15 +135,13 @@ tape( 'the function supports a `stride` parameter', function test( t ) { 2.0 ]; - N = floor( x.length / 2 ); - v = stdevpn( N, 1, x, 2, 0 ); + v = stdevpn( 4, 1, toAccessorArray( x ), 2, 0 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); }); tape( 'the function supports a negative `stride` parameter', function test( t ) { - var N; var x; var v; @@ -159,8 +156,7 @@ tape( 'the function supports a negative `stride` parameter', function test( t ) 2.0 ]; - N = floor( x.length / 2 ); - v = stdevpn( N, 1, x, -2, 6 ); + v = stdevpn( 4, 1, toAccessorArray( x ), -2, 6 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); @@ -172,14 +168,13 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns `0`', x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( x.length, 1, x, 0, 0 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 0, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); t.end(); }); tape( 'the function supports an `offset` parameter', function test( t ) { - var N; var x; var v; @@ -193,9 +188,8 @@ tape( 'the function supports an `offset` parameter', function test( t ) { 3.0, 4.0 // 3 ]; - N = floor( x.length / 2 ); - v = stdevpn( N, 1, x, 2, 1 ); + v = stdevpn( 4, 1, toAccessorArray( x ), 2, 1 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js index c870e41e5ae7..abea863f57d3 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js @@ -21,7 +21,7 @@ // MODULES // var tape = require( 'tape' ); -var floor = require( '@stdlib/math/base/special/floor' ); +var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var sqrt = require( '@stdlib/math/base/special/sqrt' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var Float64Array = require( '@stdlib/array/float64' ); @@ -46,15 +46,15 @@ tape( 'the function calculates the population standard deviation of a strided ar var v; x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; - v = stdevpn( x.length, 0, x, 1 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1 ); t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); x = [ -4.0, -4.0 ]; - v = stdevpn( x.length, 0, x, 1 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1 ); t.strictEqual( v, 0.0, 'returns expected value' ); x = [ NaN, 4.0 ]; - v = stdevpn( x.length, 0, x, 1 ); + v = stdevpn( x.length, 0, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -65,15 +65,15 @@ tape( 'the function calculates the sample standard deviation of a strided array' var v; x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; - v = stdevpn( x.length, 1, x, 1 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1 ); t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); x = [ -4.0, -4.0 ]; - v = stdevpn( x.length, 1, x, 1 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1 ); t.strictEqual( v, 0.0, 'returns expected value' ); x = [ NaN, 4.0 ]; - v = stdevpn( x.length, 1, x, 1 ); + v = stdevpn( x.length, 1, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -85,10 +85,10 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( 0, 1, x, 1 ); + v = stdevpn( 0, 1, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); - v = stdevpn( -1, 1, x, 1 ); + v = stdevpn( -1, 1, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); @@ -100,7 +100,7 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns a populat x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( 1, 0, x, 1 ); + v = stdevpn( 1, 0, toAccessorArray( x ), 1 ); t.strictEqual( v, 0.0, 'returns expected value' ); t.end(); @@ -112,17 +112,16 @@ tape( 'if provided a `correction` parameter yielding `N-correction` less than or x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( x.length, x.length, x, 1 ); + v = stdevpn( x.length, x.length, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); - v = stdevpn( x.length, x.length+1, x, 1 ); + v = stdevpn( x.length, x.length+1, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); t.end(); }); tape( 'the function supports a `stride` parameter', function test( t ) { - var N; var x; var v; @@ -137,15 +136,13 @@ tape( 'the function supports a `stride` parameter', function test( t ) { 2.0 ]; - N = floor( x.length / 2 ); - v = stdevpn( N, 1, x, 2 ); + v = stdevpn( 4, 1, toAccessorArray( x ), 2 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); }); tape( 'the function supports a negative `stride` parameter', function test( t ) { - var N; var x; var v; @@ -160,8 +157,7 @@ tape( 'the function supports a negative `stride` parameter', function test( t ) 2.0 ]; - N = floor( x.length / 2 ); - v = stdevpn( N, 1, x, -2 ); + v = stdevpn( 4, 1, toAccessorArray(x), -2 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); @@ -173,7 +169,7 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns `0`', x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( x.length, 1, x, 0 ); + v = stdevpn( x.length, 1, toAccessorArray(x), 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); t.end(); @@ -182,7 +178,6 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns `0`', tape( 'the function supports view offsets', function test( t ) { var x0; var x1; - var N; var v; x0 = new Float64Array([ @@ -198,9 +193,8 @@ tape( 'the function supports view offsets', function test( t ) { ]); x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element - N = floor(x1.length / 2); - v = stdevpn( N, 1, x1, 2 ); + v = stdevpn( 4, 1, toAccessorArray( x1 ), 2 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); From 598969de24128df157baad1c824b2730c375dd80 Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 18:22:32 +0000 Subject: [PATCH 03/12] fix: update 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 --- --- .../@stdlib/stats/base/stdevpn/lib/index.js | 2 +- .../@stdlib/stats/base/stdevpn/lib/ndarray.js | 10 ++-------- .../@stdlib/stats/base/stdevpn/lib/stdevpn.js | 1 + 3 files changed, 4 insertions(+), 9 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js index 520373413898..764541e84709 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/index.js @@ -36,7 +36,7 @@ * * var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ]; * -* var v = stdevpn.ndarray( 8, 1, x, 2, 1 ); +* var v = stdevpn.ndarray( 4, 1, x, 2, 1 ); * // returns 2.5 */ diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js index d4e99e6c2ee1..035eb84ea73b 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/ndarray.js @@ -22,8 +22,7 @@ var variancepn = require( '@stdlib/stats/base/variancepn' ).ndarray; var sqrt = require( '@stdlib/math/base/special/sqrt' ); -var arraylike2object = require( '@stdlib/array/base/arraylike2object' ); -var accessors = require( './accessors.js' ); + // MAIN // @@ -39,16 +38,11 @@ var accessors = require( './accessors.js' ); * * @example * var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ]; +* * var v = stdevpn( 4, 1, x, 2, 1 ); * // returns 2.5 */ function stdevpn( N, correction, x, strideX, offsetX ) { - var o; - - o = arraylike2object( x ); - if ( o.accessorProtocol ) { - return accessors( N, correction, o, strideX, offsetX ); - } return sqrt( variancepn( N, correction, x, strideX, offsetX ) ); } diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js index 1aaff12d1606..177c335978e6 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/stdevpn.js @@ -23,6 +23,7 @@ var stride2offset = require( '@stdlib/strided/base/stride2offset' ); var ndarray = require( './ndarray.js' ); + // MAIN // /** From de0b3c158cd7e1f8427037294b6b654ce4732204 Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 18:42:45 +0000 Subject: [PATCH 04/12] refactor: remove unused accessors module from stdevpn --- 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: 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 --- --- .../stats/base/stdevpn/lib/accessors.js | 88 ------------------- 1 file changed, 88 deletions(-) delete mode 100644 lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js b/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js deleted file mode 100644 index a0525109d6b1..000000000000 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/lib/accessors.js +++ /dev/null @@ -1,88 +0,0 @@ -/** -* @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 sqrt = require( '@stdlib/math/base/special/sqrt' ); - -// MAIN // -/** - * Computes the standard deviation of a strided array using a two-pass algorithm. - * - * @private - * @param {PositiveInteger} N - number of indexed elements - * @param {number} correction - degrees of freedom adjustment - * @param {Object} x - input array object - * @param {Collection} x.data - input array data - * @param {Array} x.accessors - array element accessors - * @param {integer} strideX - strideX length - * @param {NonNegativeInteger} offsetX - starting index - * @returns {number} standard deviation - * @example - * var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); - * var arraylike2object = require( '@stdlib/array/base/arraylike2object' ); - * - * var x = toAccessorArray( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ] ); - * - * var v = stdevpn( 4, 1, arraylike2object( x ), 2, 1 ); - * // returns 2.5 - */ -function stdevpn( N, correction, x, strideX, offsetX) { - var xbuf; - var xget; - var ix; - var mean; - var M2; - var delta; - var v; - var i; - - // Cache reference to array data: - xbuf = x.data; - - // Cache a reference to the element accessor: - xget = x.accessors[ 0 ]; - - if ( N <= 0 || (N - correction) <= 0) { - return NaN; - } - - mean = 0.0; - M2 = 0.0; - - ix = offsetX; - for ( i = 0; i < N; i++ ) { - v = xget( xbuf, ix ); - - delta = v - mean; - mean += delta / (i + 1); - M2 += delta * (v - mean); - - ix += strideX; - } - - var variance = M2 / (N - correction); - - return sqrt( variance ); -} -// EXPORTS // - -module.exports = stdevpn; From 9da87cf013fdc1f7e355e517ff337b0782c7f4fa Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 18:45:37 +0000 Subject: [PATCH 05/12] docs: improve clarity in standard deviation documentation --- 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: passed - 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 --- --- lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt index 2f91ae5a9a57..a1db8bd59cc1 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt @@ -3,8 +3,8 @@ Computes the standard deviation of a strided array using a two-pass algorithm. - The `N` and stride parameters determine which elements in the strided array are accessed - at runtime. + The `N` and stride parameters determine which elements in the strided array + are accessed at runtime. Indexing is relative to the first index. To introduce an offset, use a typed array view. @@ -57,6 +57,7 @@ > {{alias}}( 3, 1, x1, 2 ) ~2.0817 + {{alias}}.ndarray( N, correction, x, strideX, offsetX ) Computes the standard deviation of a strided array using a two-pass algorithm and alternative indexing semantics. @@ -86,7 +87,7 @@ Input array. strideX: integer - Index increment. + Stride length. offsetX: integer Starting index. From a039378c66e7bcc982cccc08a9a5c6bf8123aa88 Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 18:47:13 +0000 Subject: [PATCH 06/12] style: format benchmark files for consistency --- 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: 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: na - task: lint_typescript_tests status: na - task: lint_license_headers status: passed --- --- .../@stdlib/stats/base/stdevpn/benchmark/benchmark.js | 2 ++ .../@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js | 2 ++ 2 files changed, 4 insertions(+) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js index fcc285292058..10534ad0bec5 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.js @@ -27,12 +27,14 @@ var pow = require( '@stdlib/math/base/special/pow' ); var pkg = require( './../package.json' ).name; var stdevpn = require( './../lib/stdevpn.js' ); + // VARIABLES // var options = { 'dtype': 'generic' }; + // FUNCTIONS // /** diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js index 44bed5cd49c9..3cb8fe67ef7a 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/benchmark/benchmark.ndarray.js @@ -27,12 +27,14 @@ var pow = require( '@stdlib/math/base/special/pow' ); var pkg = require( './../package.json' ).name; var stdevpn = require( './../lib/ndarray.js' ); + // VARIABLES // var options = { 'dtype': 'generic' }; + // FUNCTIONS // /** From fd036a7eada04488251444261287a8bc77c366c0 Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 18:52:14 +0000 Subject: [PATCH 07/12] docs: update parameter name in stdevpn documentation for clarity --- 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 --- --- lib/node_modules/@stdlib/stats/base/stdevpn/README.md | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/README.md b/lib/node_modules/@stdlib/stats/base/stdevpn/README.md index e267c935bdd7..5bd3957ba804 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/README.md +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/README.md @@ -98,9 +98,9 @@ The use of the term `n-1` is commonly referred to as Bessel's correction. Note, var stdevpn = require( '@stdlib/stats/base/stdevpn' ); ``` -#### stdevpn( N, correction, x, stride ) +#### stdevpn( N, correction, x, strideX ) -Computes the [standard deviation][standard-deviation] of a strided array `x` using a two-pass algorithm. +Computes the [standard deviation][standard-deviation] of a strided array using a two-pass algorithm. ```javascript var x = [ 1.0, -2.0, 2.0 ]; @@ -119,8 +119,6 @@ The function has the following parameters: The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute the [standard deviation][standard-deviation] of every other element in `x`, ```javascript -var floor = require( '@stdlib/math/base/special/floor' ); - var x = [ 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0 ]; var v = stdevpn( 4, 1, x, 2 ); From 55a8f78b403d584bda3816ac6922a7f91f709544 Mon Sep 17 00:00:00 2001 From: gururaj1512 Date: Wed, 11 Jun 2025 19:03:14 +0000 Subject: [PATCH 08/12] test: add accessor array tests --- 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 --- --- .../stats/base/stdevpn/test/test.ndarray.js | 157 ++++++++++++++++- .../stats/base/stdevpn/test/test.stdevpn.js | 165 +++++++++++++++++- 2 files changed, 318 insertions(+), 4 deletions(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js index 8a9757e89a29..3d2778a7f1a3 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.ndarray.js @@ -21,9 +21,9 @@ // MODULES // var tape = require( 'tape' ); -var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var sqrt = require( '@stdlib/math/base/special/sqrt' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); +var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var stdevpn = require( './../lib/ndarray.js' ); @@ -44,6 +44,25 @@ tape( 'the function calculates the population standard deviation of a strided ar var x; var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; + v = stdevpn( x.length, 0, x, 1, 0 ); + t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); + + x = [ -4.0, -4.0 ]; + v = stdevpn( x.length, 0, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = [ NaN, 4.0 ]; + v = stdevpn( x.length, 0, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function calculates the population standard deviation of a strided array (accessors)', function test( t ) { + var x; + var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; v = stdevpn( x.length, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); @@ -63,6 +82,25 @@ tape( 'the function calculates the sample standard deviation of a strided array' var x; var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; + v = stdevpn( x.length, 1, x, 1, 0 ); + t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); + + x = [ -4.0, -4.0 ]; + v = stdevpn( x.length, 1, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = [ NaN, 4.0 ]; + v = stdevpn( x.length, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function calculates the sample standard deviation of a strided array (accessors)', function test( t ) { + var x; + var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; v = stdevpn( x.length, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); @@ -84,6 +122,21 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 0, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = stdevpn( -1, 1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 0, 1, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); @@ -99,6 +152,18 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns a populat x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 1, 0, x, 1, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter equal to `1`, the function returns a population standard deviation of `0` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 1, 0, toAccessorArray( x ), 1, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); @@ -111,6 +176,21 @@ tape( 'if provided a `correction` parameter yielding `N-correction` less than or x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, x.length, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = stdevpn( x.length, x.length+1, x, 1, 0 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `correction` parameter yielding `N-correction` less than or equal to `0`, the function returns `NaN` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, x.length, toAccessorArray( x ), 1, 0 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); @@ -135,6 +215,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) { 2.0 ]; + v = stdevpn( 4, 1, x, 2, 0 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'the function supports a `stride` parameter (accessors)', function test( t ) { + var x; + var v; + + x = [ + 1.0, // 0 + 2.0, + 2.0, // 1 + -7.0, + -2.0, // 2 + 3.0, + 4.0, // 3 + 2.0 + ]; + v = stdevpn( 4, 1, toAccessorArray( x ), 2, 0 ); t.strictEqual( v, 2.5, 'returns expected value' ); @@ -156,6 +257,27 @@ tape( 'the function supports a negative `stride` parameter', function test( t ) 2.0 ]; + v = stdevpn( 4, 1, x, -2, 6 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) { + var x; + var v; + + x = [ + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]; + v = stdevpn( 4, 1, toAccessorArray( x ), -2, 6 ); t.strictEqual( v, 2.5, 'returns expected value' ); @@ -168,6 +290,18 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns `0`', x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, 1, x, 0, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, 1, toAccessorArray( x ), 0, 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); @@ -189,6 +323,27 @@ tape( 'the function supports an `offset` parameter', function test( t ) { 4.0 // 3 ]; + v = stdevpn( 4, 1, x, 2, 1 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports an `offset` parameter (accessors)', function test( t ) { + var x; + var v; + + x = [ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0 // 3 + ]; + v = stdevpn( 4, 1, toAccessorArray( x ), 2, 1 ); t.strictEqual( v, 2.5, 'returns expected value' ); diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js index abea863f57d3..c24b824dbb5c 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/test/test.stdevpn.js @@ -21,10 +21,10 @@ // MODULES // var tape = require( 'tape' ); -var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var sqrt = require( '@stdlib/math/base/special/sqrt' ); var isnan = require( '@stdlib/math/base/assert/is-nan' ); var Float64Array = require( '@stdlib/array/float64' ); +var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' ); var stdevpn = require( './../lib/stdevpn.js' ); @@ -45,6 +45,25 @@ tape( 'the function calculates the population standard deviation of a strided ar var x; var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; + v = stdevpn( x.length, 0, x, 1 ); + t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); + + x = [ -4.0, -4.0 ]; + v = stdevpn( x.length, 0, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = [ NaN, 4.0 ]; + v = stdevpn( x.length, 0, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function calculates the population standard deviation of a strided array (accessors)', function test( t ) { + var x; + var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; v = stdevpn( x.length, 0, toAccessorArray( x ), 1 ); t.strictEqual( v, sqrt( 53.5/x.length ), 'returns expected value' ); @@ -64,6 +83,25 @@ tape( 'the function calculates the sample standard deviation of a strided array' var x; var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; + v = stdevpn( x.length, 1, x, 1 ); + t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); + + x = [ -4.0, -4.0 ]; + v = stdevpn( x.length, 1, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + x = [ NaN, 4.0 ]; + v = stdevpn( x.length, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function calculates the sample standard deviation of a strided array (accessors)', function test( t ) { + var x; + var v; + x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ]; v = stdevpn( x.length, 1, toAccessorArray( x ), 1 ); t.strictEqual( v, sqrt( 53.5/(x.length-1) ), 'returns expected value' ); @@ -85,6 +123,21 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 0, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = stdevpn( -1, 1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 0, 1, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); @@ -100,6 +153,18 @@ tape( 'if provided an `N` parameter equal to `1`, the function returns a populat x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 1, 0, x, 1 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided an `N` parameter equal to `1`, the function returns a population standard deviation of `0` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( 1, 0, toAccessorArray( x ), 1 ); t.strictEqual( v, 0.0, 'returns expected value' ); @@ -112,6 +177,21 @@ tape( 'if provided a `correction` parameter yielding `N-correction` less than or x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, x.length, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + v = stdevpn( x.length, x.length+1, x, 1 ); + t.strictEqual( isnan( v ), true, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `correction` parameter yielding `N-correction` less than or equal to `0`, the function returns `NaN` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + v = stdevpn( x.length, x.length, toAccessorArray( x ), 1 ); t.strictEqual( isnan( v ), true, 'returns expected value' ); @@ -136,6 +216,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) { 2.0 ]; + v = stdevpn( 4, 1, x, 2 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'the function supports a `stride` parameter (accessors)', function test( t ) { + var x; + var v; + + x = [ + 1.0, // 0 + 2.0, + 2.0, // 1 + -7.0, + -2.0, // 2 + 3.0, + 4.0, // 3 + 2.0 + ]; + v = stdevpn( 4, 1, toAccessorArray( x ), 2 ); t.strictEqual( v, 2.5, 'returns expected value' ); @@ -157,7 +258,28 @@ tape( 'the function supports a negative `stride` parameter', function test( t ) 2.0 ]; - v = stdevpn( 4, 1, toAccessorArray(x), -2 ); + v = stdevpn( 4, 1, x, -2 ); + + t.strictEqual( v, 2.5, 'returns expected value' ); + t.end(); +}); + +tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) { + var x; + var v; + + x = [ + 1.0, // 3 + 2.0, + 2.0, // 2 + -7.0, + -2.0, // 1 + 3.0, + 4.0, // 0 + 2.0 + ]; + + v = stdevpn( 4, 1, toAccessorArray( x ), -2 ); t.strictEqual( v, 2.5, 'returns expected value' ); t.end(); @@ -169,7 +291,19 @@ tape( 'if provided a `stride` parameter equal to `0`, the function returns `0`', x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; - v = stdevpn( x.length, 1, toAccessorArray(x), 0 ); + v = stdevpn( x.length, 1, x, 0 ); + t.strictEqual( v, 0.0, 'returns expected value' ); + + t.end(); +}); + +tape( 'if provided a `stride` parameter equal to `0`, the function returns `0` (accessors)', function test( t ) { + var x; + var v; + + x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ]; + + v = stdevpn( x.length, 1, toAccessorArray( x ), 0 ); t.strictEqual( v, 0.0, 'returns expected value' ); t.end(); @@ -194,6 +328,31 @@ tape( 'the function supports view offsets', function test( t ) { x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + v = stdevpn( 4, 1, x1, 2 ); + t.strictEqual( v, 2.5, 'returns expected value' ); + + t.end(); +}); + +tape( 'the function supports view offsets (accessors)', function test( t ) { + var x0; + var x1; + var v; + + x0 = new Float64Array([ + 2.0, + 1.0, // 0 + 2.0, + -2.0, // 1 + -2.0, + 2.0, // 2 + 3.0, + 4.0, // 3 + 6.0 + ]); + + x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element + v = stdevpn( 4, 1, toAccessorArray( x1 ), 2 ); t.strictEqual( v, 2.5, 'returns expected value' ); From 26c98ebbbf961cf470215fd9a27b55cc36349c53 Mon Sep 17 00:00:00 2001 From: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com> Date: Thu, 12 Jun 2025 00:43:00 +0530 Subject: [PATCH 09/12] Update lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts Signed-off-by: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com> --- lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts index ce73b92ac8d6..7e6f67ff05c7 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts @@ -103,7 +103,7 @@ import stdevpn = require( './index' ); const x = new Float64Array( 10 ); stdevpn.ndarray( x.length, 1, x, 1, 0 ); // $ExpectType number - stdevpn( x.length, new AccessorArray( x ), 1 ); // $ExpectType number + stdevpn.ndarray( x.length, 1, new AccessorArray( x ), 1, 0 ); // $ExpectType number } // The compiler throws an error if the `ndarray` method is provided a first argument which is not a number... From 2aa6f9b7bd16b051bfc0107485ae826a369245b8 Mon Sep 17 00:00:00 2001 From: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com> Date: Thu, 12 Jun 2025 00:43:20 +0530 Subject: [PATCH 10/12] Update lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts Signed-off-by: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com> --- lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts index 7e6f67ff05c7..6ed6fdd2ee29 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/types/test.ts @@ -27,7 +27,7 @@ import stdevpn = require( './index' ); const x = new Float64Array( 10 ); stdevpn( x.length, 1, x, 1 ); // $ExpectType number - stdevpn( x.length, new AccessorArray( x ), 1 ); // $ExpectType number + stdevpn( x.length, 1, new AccessorArray( x ), 1 ); // $ExpectType number } // The compiler throws an error if the function is provided a first argument which is not a number... From e7f14b7face4ac29041bc0aa95008a228f5ea97c Mon Sep 17 00:00:00 2001 From: Athan Date: Fri, 13 Jun 2025 01:25:37 -0700 Subject: [PATCH 11/12] docs: update copy Signed-off-by: Athan --- lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt index a1db8bd59cc1..df4bf6a9b272 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt @@ -63,7 +63,7 @@ algorithm and alternative indexing semantics. While typed array views mandate a view offset based on the underlying - buffer, the offsetX parameter supports indexing semantics based on a + buffer, the offset parameter supports indexing semantics based on a starting index. Parameters From 06b815c8a2c6df7b51a1d70f8de69295b0e5c620 Mon Sep 17 00:00:00 2001 From: Athan Date: Fri, 13 Jun 2025 01:26:07 -0700 Subject: [PATCH 12/12] docs: remove duplicate declaration Signed-off-by: Athan --- lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt index df4bf6a9b272..7f8e429db473 100644 --- a/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt +++ b/lib/node_modules/@stdlib/stats/base/stdevpn/docs/repl.txt @@ -105,7 +105,7 @@ ~2.0817 // Using offset parameter: - > var x = [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0 ]; + > x = [ 1.0, -2.0, 3.0, 2.0, 5.0, -1.0 ]; > {{alias}}.ndarray( 3, 1, x, 2, 1 ) ~2.0817