-
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
f73c2e7
commit b325d4d
Showing
6 changed files
with
214 additions
and
30 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| 2024-02-01T05:54:41.704Z |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| Copyright (c) 2016-2023 The Stdlib Authors. | ||
| Copyright (c) 2016-2024 The Stdlib Authors. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,68 @@ | ||
| "use strict";var n=function(e,r){return function(){return r||e((r={exports:{}}).exports,r),r.exports}};var o=n(function(m,i){"use strict";var v=require("@stdlib/ndarray-base-broadcast-shapes"),p=require("@stdlib/ndarray-base-maybe-broadcast-array"),c=require("@stdlib/ndarray-base-shape");function h(e){var r,t,s,u,a;for(u=e.length,r=[],a=0;a<u;a++)r.push(c(e[a],!1));if(s=v(r),s===null)throw new Error("invalid arguments. Input arrays must be broadcast compatible.");for(t=[],a=0;a<u;a++)t.push(p(e[a],s));return t}i.exports=h});var b=o();module.exports=b; | ||
| /** @license Apache-2.0 */ | ||
|
|
||
| 'use strict'; | ||
|
|
||
| /** | ||
| * @license Apache-2.0 | ||
| * Broadcast ndarrays to a common shape. | ||
| * | ||
| * Copyright (c) 2023 The Stdlib Authors. | ||
| * @module @stdlib/ndarray-base-maybe-broadcast-arrays | ||
| * | ||
| * 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 | ||
| * @example | ||
| * var array = require( '@stdlib/ndarray-array' ); | ||
| * var zeros = require( '@stdlib/ndarray-zeros' ); | ||
| * var maybeBroadcastArrays = require( '@stdlib/ndarray-base-maybe-broadcast-arrays' ); | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * var x = array( [ [ 1, 2 ], [ 3, 4 ] ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * 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. | ||
| * var shx = x.shape; | ||
| * // returns [ 2, 2 ] | ||
| * | ||
| * var y1 = zeros( [ 3, 2, 2 ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var shy = y1.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * var out = maybeBroadcastArrays( [ x1, y1 ] ); | ||
| * // returns [ <ndarray>, <ndarray> ] | ||
| * | ||
| * var x2 = out[ 0 ]; | ||
| * // returns <ndarray> | ||
| * | ||
| * var y2 = out[ 1 ]; | ||
| * // returns <ndarray> | ||
| * | ||
| * shx = x2.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * shy = y2.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * var v = x2.get( 0, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 0, 0, 1 ); | ||
| * // returns 2 | ||
| * | ||
| * v = x2.get( 1, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 1, 1, 0 ); | ||
| * // returns 3 | ||
| * | ||
| * v = x2.get( 2, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 2, 1, 1 ); | ||
| * // returns 4 | ||
| */ | ||
| //# sourceMappingURL=index.js.map | ||
|
|
||
| // MODULES // | ||
|
|
||
| var main = require( './main.js' ); | ||
|
|
||
|
|
||
| // EXPORTS // | ||
|
|
||
| module.exports = main; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /** | ||
| * @license Apache-2.0 | ||
| * | ||
| * Copyright (c) 2023 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 broadcastShapes = require( '@stdlib/ndarray-base-broadcast-shapes' ); | ||
| var maybeBroadcastArray = require( '@stdlib/ndarray-base-maybe-broadcast-array' ); | ||
| var getShape = require( '@stdlib/ndarray-base-shape' ); | ||
|
|
||
|
|
||
| // MAIN // | ||
|
|
||
| /** | ||
| * Broadcasts an ndarrays to a common shape. | ||
| * | ||
| * ## Notes | ||
| * | ||
| * - If a provided ndarray has a shape matching the common shape, the function returns the provided ndarray. | ||
| * - If a provided ndarray has a different (broadcast compatible) shape than the common shape, the function returns a new (base) ndarray view of the provided ndarray's data. The view is typically **not** contiguous. As more than one element of a returned view may refer to the same memory location, writing to a view may affect multiple elements. If you need to write to a returned array, copy the array before performing operations which may mutate elements. | ||
| * | ||
| * @param {ArrayLikeObject<ndarray>} arrays - list of input arrays | ||
| * @throws {Error} input arrays must be broadcast compatible | ||
| * @returns {Array<ndarray>} broadcasted arrays | ||
| * | ||
| * @example | ||
| * var array = require( '@stdlib/ndarray-array' ); | ||
| * var zeros = require( '@stdlib/ndarray-zeros' ); | ||
| * | ||
| * var x1 = array( [ [ 1, 2 ], [ 3, 4 ] ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var shx = x1.shape; | ||
| * // returns [ 2, 2 ] | ||
| * | ||
| * var y1 = zeros( [ 3, 2, 2 ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var shy = y1.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * var out = maybeBroadcastArrays( [ x1, y1 ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var x2 = out[ 0 ]; | ||
| * // returns <ndarray> | ||
| * | ||
| * var y2 = out[ 1 ]; | ||
| * // returns <ndarray> | ||
| * | ||
| * shx = x2.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * shy = y2.shape; | ||
| * // returns [ 3, 2, 2 ] | ||
| * | ||
| * var v = x2.get( 0, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 0, 0, 1 ); | ||
| * // returns 2 | ||
| * | ||
| * v = x2.get( 1, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 1, 1, 0 ); | ||
| * // returns 3 | ||
| * | ||
| * v = x2.get( 2, 0, 0 ); | ||
| * // returns 1 | ||
| * | ||
| * v = x2.get( 2, 1, 1 ); | ||
| * // returns 4 | ||
| * | ||
| * @example | ||
| * var zeros = require( '@stdlib/ndarray-zeros' ); | ||
| * | ||
| * var x = zeros( [ 2, 2 ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var y = zeros( [ 4, 2 ] ); | ||
| * // returns <ndarray> | ||
| * | ||
| * var out = maybeBroadcastArrays( [ x, y ] ); | ||
| * // throws <Error> | ||
| */ | ||
| function maybeBroadcastArrays( arrays ) { | ||
| var shapes; | ||
| var out; | ||
| var sh; | ||
| var N; | ||
| var i; | ||
|
|
||
| N = arrays.length; | ||
|
|
||
| // Resolve the list of shapes... | ||
| shapes = []; | ||
| for ( i = 0; i < N; i++ ) { | ||
| shapes.push( getShape( arrays[ i ], false ) ); | ||
| } | ||
| // Broadcast the shapes to a common shape: | ||
| sh = broadcastShapes( shapes ); | ||
| if ( sh === null ) { | ||
| throw new Error( 'invalid arguments. Input arrays must be broadcast compatible.' ); | ||
| } | ||
| // Broadcast each array to the common shape... | ||
| out = []; | ||
| for ( i = 0; i < N; i++ ) { | ||
| out.push( maybeBroadcastArray( arrays[ i ], sh ) ); | ||
| } | ||
| return out; | ||
| } | ||
|
|
||
|
|
||
| // EXPORTS // | ||
|
|
||
| module.exports = maybeBroadcastArrays; |