Auto-generated commit

base/lib/index.js

@@ -625,6 +625,15 @@ setReadOnly( ns, 'sliceAssign', require( './../../base/slice-assign' ) );
 */
 setReadOnly( ns, 'sliceDimension', require( './../../base/slice-dimension' ) );
 
+/**
+* @name sliceFrom
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/ndarray/base/slice-from}
+*/
+setReadOnly( ns, 'sliceFrom', require( './../../base/slice-from' ) );
+
 /**
 * @name sliceTo
 * @memberof ns

base/slice-from/README.md

@@ -0,0 +1,169 @@
+<!--
+
+@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.
+
+-->
+
+# sliceFrom
+
+> Return a shifted view of an input ndarray.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var sliceFrom = require( '@stdlib/ndarray/base/slice-from' );
+```
+
+#### sliceFrom( x, start, strict, writable )
+
+Returns a shifted view of an input ndarray.
+
+```javascript
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+
+var buffer = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+var shape = [ 3, 2 ];
+var strides = [ 2, 1 ];
+var offset = 0;
+
+var x = ndarray( 'generic', buffer, shape, strides, offset, 'row-major' );
+// returns <ndarray>
+
+var sh = x.shape;
+// returns [ 3, 2 ]
+
+var arr = ndarray2array( x );
+// returns [ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
+
+var s = [ 1, null ];
+var y = sliceFrom( x, s, false, false );
+// returns <ndarray>
+
+sh = y.shape;
+// returns [ 2, 2 ]
+
+arr = ndarray2array( y );
+// returns [ [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
+```
+
+The function accepts the following arguments:
+
+-   **x**: input ndarray.
+-   **start**: an array of starting indices (inclusive). Each element must be either `null`, `undefined`, or an integer. A value of `null` or `undefined` indicates to include all elements along a corresponding dimension. A negative integer indicates to resolve a starting index relative to the last element along a corresponding dimension, with the last element having index `-1`.
+-   **strict**: boolean indicating whether to enforce strict bounds checking.
+-   **writable**: boolean indicating whether a returned ndarray should be writable.
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   The `writable` parameter **only** applies to ndarray constructors supporting **read-only** instances.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var array = require( '@stdlib/ndarray/array' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var zeroTo = require( '@stdlib/array/base/zero-to' );
+var sliceFrom = require( '@stdlib/ndarray/base/slice-from' );
+
+// Create a linear ndarray buffer:
+var buf = zeroTo( 27 );
+
+// Create an ndarray:
+var x = array( buf, {
+    'shape': [ 3, 3, 3 ]
+});
+
+// Get the last two rows of each matrix:
+var y1 = sliceFrom( x, [ null, 1, null ], false, false );
+// returns <ndarray>
+
+var a1 = ndarray2array( y1 );
+// returns [ [ [ 3, 4, 5 ], [ 6, 7, 8 ] ], [ [ 12, 13, 14 ], [ 15, 16, 17 ] ], [ [ 21, 22, 23 ], [ 24, 25, 26 ] ] ]
+
+// Get the last two rows and columns of each matrix:
+var y2 = sliceFrom( x, [ null, 1, 1 ], false, false );
+// returns <ndarray>
+
+var a2 = ndarray2array( y2 );
+// returns [ [ [ 4, 5 ], [ 7, 8 ] ], [ [ 13, 14 ], [ 16, 17 ] ], [ [ 22, 23 ], [ 25, 26 ] ] ]
+
+// Get the last two 2x2 matrices:
+var y3 = sliceFrom( x, [ 1, 1, 1 ], false, false );
+// returns <ndarray>
+
+var a3 = ndarray2array( y3 );
+// returns [ [ [ 13, 14 ], [ 16, 17 ] ], [ [ 22, 23 ], [ 25, 26 ] ] ]
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- 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 -->