-
-
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
5e4730a
commit 29fc978
Showing
17 changed files
with
1,700 additions
and
6 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
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 |
---|---|---|
|
@@ -19,6 +19,7 @@ Chinmay Joshi <[email protected]> | |
Christopher Dambamuromo <[email protected]> | ||
Dan Rose <[email protected]> | ||
Daniel Killenberger <[email protected]> | ||
Daniel Yu <[email protected]> | ||
Dominik Moritz <[email protected]> | ||
Dorrin Sotoudeh <[email protected]> | ||
EuniceSim142 <[email protected]> | ||
|
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 +1,174 @@ | ||
<!-- | ||
@license Apache-2.0 | ||
Copyright (c) 2024 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. | ||
--> | ||
|
||
# mskrejectMap | ||
|
||
> Apply a mask to a provided input array and map the unmasked values according to a callback function. | ||
<section class="usage"> | ||
|
||
## Usage | ||
|
||
```javascript | ||
var mskrejectMap = require( '@stdlib/array/base/mskreject-map' ); | ||
``` | ||
|
||
#### mskrejectMap( x, mask, clbk\[, thisArg ] ) | ||
|
||
Returns a new array by applying a mask and mapping the unmasked values according to a callback function. | ||
|
||
```javascript | ||
var x = [ 1, 2, 3, 4 ]; | ||
|
||
function clbk( val ) { | ||
return val * 2; | ||
} | ||
|
||
var y = mskrejectMap( x, [ 0, 1, 0, 1 ], clbk ); | ||
// returns [ 2, 6 ] | ||
``` | ||
|
||
The function supports the following parameters: | ||
|
||
- **x**: input array. | ||
- **mask**: mask array. | ||
- **clbk**: function to apply. | ||
- **thisArg**: applied function execution context (_optional_). | ||
|
||
The `clbk` function is provided three arguments: | ||
|
||
- **value**: current unmasked array element. | ||
- **index**: current unmasked array element index. | ||
- **arr**: input array. | ||
|
||
To set the `clbk` function execution context, provide a `thisArg`. | ||
|
||
```javascript | ||
var x = [ 1, 2, 3, 4 ]; | ||
|
||
var mask = [ 0, 1, 0, 1 ]; | ||
|
||
var increase = 3; | ||
|
||
function clbk( value ) { | ||
return value + this; | ||
} | ||
|
||
var out = mskrejectMap( x, mask, clbk, increase ); | ||
// returns [ 4, 6 ] | ||
``` | ||
|
||
The function **always** returns a new "generic" array. | ||
|
||
#### mskrejectMap.assign( x, mask, out, stride, offset, clbk\[, thisArg ] ) | ||
|
||
Applies a mask to a provided input array, maps the unmasked values according to a callback function, and assigns to elements in a provided output array. | ||
|
||
```javascript | ||
var x = [ 1, 2, 3, 4 ]; | ||
|
||
var mask = [ 1, 0, 1, 0 ]; | ||
|
||
var out = [ 0, 0, 0, 0 ]; | ||
|
||
function clbk( val ) { | ||
return val * 2; | ||
} | ||
|
||
var arr = mskrejectMap.assign( x, mask, out, -2, out.length-1, clbk ); | ||
// returns [ 0, 8, 0, 4 ] | ||
|
||
var bool = ( arr === out ); | ||
// returns true | ||
``` | ||
|
||
The function supports the following parameters: | ||
|
||
- **x**: input array. | ||
- **mask**: mask array. | ||
- **out**: output array. | ||
- **stride**: output array stride. | ||
- **offset**: output array offset. | ||
- **clbk**: function to apply. | ||
- **thisArg**: applied function execution context (_optional_). | ||
|
||
</section> | ||
|
||
<!-- /.usage --> | ||
|
||
<section class="notes"> | ||
|
||
## Notes | ||
|
||
- If a `mask` array element is falsy, the corresponding element in `x` is **mapped** in the output array; otherwise, the corresponding element in `x` is "masked" and thus **excluded** from the output array. | ||
|
||
</section> | ||
|
||
<!-- /.notes --> | ||
|
||
<section class="examples"> | ||
|
||
## Examples | ||
|
||
<!-- eslint no-undef: "error" --> | ||
|
||
```javascript | ||
var zeroTo = require( '@stdlib/array/base/zero-to' ); | ||
var bernoulli = require( '@stdlib/random/array/bernoulli' ); | ||
var mskrejectMap = require( '@stdlib/array/base/mskreject-map' ); | ||
|
||
// Generate a linearly spaced array: | ||
var x = zeroTo( 20 ); | ||
console.log( x ); | ||
|
||
// Generate a random mask: | ||
var mask = bernoulli( x.length, 0.5, { | ||
'dtype': 'generic' | ||
}); | ||
console.log( mask ); | ||
|
||
function clbk( val ) { | ||
return val * 2; | ||
} | ||
|
||
// Filter an array using the mask: | ||
var y = mskrejectMap( x, mask, clbk ); | ||
console.log( y ); | ||
``` | ||
|
||
</section> | ||
|
||
<!-- /.examples --> | ||
|
||
<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> | ||
|
||
<section class="related"> | ||
|
||
</section> | ||
|
||
<!-- /.related --> | ||
|
||
<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
|
||
<section class="links"> | ||
|
||
</section> | ||
|
||
<!-- /.links --> |
106 changes: 106 additions & 0 deletions
106
base/mskreject-map/benchmark/benchmark.assign.length.js
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 +1,106 @@ | ||
/** | ||
* @license Apache-2.0 | ||
* | ||
* Copyright (c) 2024 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 pow = require( '@stdlib/math/base/special/pow' ); | ||
var zeroTo = require( './../../../base/zero-to' ); | ||
var zeros = require( './../../../zeros' ); | ||
var isArray = require( '@stdlib/assert/is-array' ); | ||
var isnan = require( '@stdlib/assert/is-nan' ).isPrimitive; | ||
var pkg = require( './../package.json' ).name; | ||
var mskrejectMap = require( './../lib' ); | ||
|
||
|
||
// FUNCTIONS // | ||
|
||
/** | ||
* Creates a benchmark function. | ||
* | ||
* @private | ||
* @param {PositiveInteger} len - array length | ||
* @returns {Function} benchmark function | ||
*/ | ||
function createBenchmark( len ) { | ||
var mask; | ||
var out; | ||
var x; | ||
|
||
x = zeroTo( len, 'generic' ); | ||
mask = zeros( len, 'generic' ); | ||
out = zeros( len, 'generic' ); | ||
|
||
return benchmark; | ||
|
||
/** | ||
* Benchmark function. | ||
* | ||
* @private | ||
* @param {Benchmark} b - benchmark instance | ||
*/ | ||
function benchmark( b ) { | ||
var v; | ||
var i; | ||
|
||
b.tic(); | ||
for ( i = 0; i < b.iterations; i++ ) { | ||
v = mskrejectMap.assign( x, mask, out, 1, 0, function clbk( val ) { | ||
return val * 2; | ||
} ); | ||
if ( typeof v !== 'object' ) { | ||
b.fail( 'should return an array' ); | ||
} | ||
} | ||
b.toc(); | ||
if ( !isArray( v ) || isnan( v[ i%len ] ) ) { | ||
b.fail( 'should return an array' ); | ||
} | ||
b.pass( 'benchmark finished' ); | ||
b.end(); | ||
} | ||
} | ||
|
||
|
||
// MAIN // | ||
|
||
/** | ||
* Main execution sequence. | ||
* | ||
* @private | ||
*/ | ||
function main() { | ||
var len; | ||
var min; | ||
var max; | ||
var f; | ||
var i; | ||
|
||
min = 1; // 10^min | ||
max = 6; // 10^max | ||
|
||
for ( i = min; i <= max; i++ ) { | ||
len = pow( 10, i ); | ||
f = createBenchmark( len ); | ||
bench( pkg+':assign:len='+len, f ); | ||
} | ||
} | ||
|
||
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 +1,57 @@ | ||
/** | ||
* @license Apache-2.0 | ||
* | ||
* Copyright (c) 2024 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 isArray = require( '@stdlib/assert/is-array' ); | ||
var zeroTo = require( './../../../base/zero-to' ); | ||
var zeros = require( './../../../base/zeros' ); | ||
var pkg = require( './../package.json' ).name; | ||
var mskrejectMap = require( './../lib' ); | ||
|
||
|
||
// MAIN // | ||
|
||
bench( pkg+'::copy:len=100', function benchmark( b ) { | ||
var x; | ||
var y; | ||
var i; | ||
var v; | ||
|
||
x = zeroTo( 100 ); | ||
y = zeros( x.length ); | ||
|
||
b.tic(); | ||
for ( i = 0; i < b.iterations; i++ ) { | ||
v = mskrejectMap( x, y, function clbk( val ) { | ||
return val * 2; | ||
} ); | ||
if ( typeof v !== 'object' ) { | ||
b.fail( 'should return an array' ); | ||
} | ||
} | ||
b.toc(); | ||
if ( !isArray( v ) ) { | ||
b.fail( 'should return an array' ); | ||
} | ||
b.pass( 'benchmark finished' ); | ||
b.end(); | ||
}); |
Oops, something went wrong.