diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/README.md b/lib/node_modules/@stdlib/stats/strided/rangeabs/README.md
new file mode 100644
index 000000000000..76d6bb694d6e
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/README.md
@@ -0,0 +1,187 @@
+
+
+# rangeabs
+
+> Calculate the range of absolute values of a strided array.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var rangeabs = require( '@stdlib/stats/strided/rangeabs' );
+```
+
+#### rangeabs( N, x, strideX )
+
+Computes the range of absolute values of a strided array `x`.
+
+```javascript
+var x = [ 1.0, -2.0, 2.0 ];
+
+var v = rangeabs( x.length, x, 1 );
+// returns 1.0
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **x**: input [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideX**: stride length for `x`.
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute the range of absolute values of every other element in `x`,
+
+```javascript
+var x = [ 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0 ];
+
+var v = rangeabs( 4, x, 2 );
+// returns 3.0
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+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 v = rangeabs( 4, x1, 2 );
+// returns 3.0
+```
+
+#### rangeabs.ndarray( N, x, strideX, offsetX )
+
+Computes the range of absolute values of a strided array using alternative indexing semantics.
+
+```javascript
+var x = [ 1.0, -2.0, 2.0 ];
+
+var v = rangeabs.ndarray( x.length, x, 1, 0 );
+// returns 1.0
+```
+
+The function has the following additional parameters:
+
+- **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 range of absolute values for every other element in `x` starting from the second element
+
+```javascript
+var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ];
+
+var v = rangeabs.ndarray( 4, x, 2, 1 );
+// returns 3.0
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0`, both functions return `NaN`.
+- Depending on the environment, the typed versions ([`drangeabs`][@stdlib/stats/strided/drangeabs], [`srangeabs`][@stdlib/stats/strided/srangeabs], etc.) are likely to be significantly more performant.
+- 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]).
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var rangeabs = require( '@stdlib/stats/strided/rangeabs' );
+
+var x = discreteUniform( 10, -50, 50, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var v = rangeabs( x.length, x, 1 );
+console.log( v );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[mdn-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
+
+[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/strided/drangeabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/drangeabs
+
+[@stdlib/stats/strided/maxabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/maxabs
+
+[@stdlib/stats/strided/minabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/minabs
+
+[@stdlib/stats/strided/nanrange]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/nanrange
+
+[@stdlib/stats/strided/range]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/range
+
+[@stdlib/stats/strided/srangeabs]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/srangeabs
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.js
new file mode 100644
index 000000000000..03d2f44924ab
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.js
@@ -0,0 +1,103 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var rangeabs = require( './../lib/main.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var x = uniform( len, -10, 10, options );
+ 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 = rangeabs( x.length, x, 1 );
+ if ( isnan( v ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ 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( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..83827a414a7f
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/benchmark/benchmark.ndarray.js
@@ -0,0 +1,103 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 uniform = require( '@stdlib/random/array/uniform' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var rangeabs = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var x = uniform( len, -10, 10, options );
+ 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 = rangeabs( x.length, x, 1, 0 );
+ if ( isnan( v ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( v ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ 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( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/repl.txt b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/repl.txt
new file mode 100644
index 000000000000..71d6ba41f584
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/repl.txt
@@ -0,0 +1,89 @@
+
+{{alias}}( N, x, strideX )
+ Computes the range of absolute values of a strided array.
+
+ 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.
+
+ If `N <= 0`, the function returns `NaN`.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ x: Array|TypedArray
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ Returns
+ -------
+ out: number
+ Range of absolute values.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ 1.0, -2.0, 2.0 ];
+ > {{alias}}( x.length, x, 1 )
+ 1.0
+
+ // Using `N` and stride parameters:
+ > x = [ -2.0, 1.0, -5.0, -5.0, 2.0, -1.0 ];
+ > {{alias}}( 3, x, 2 )
+ 3.0
+
+ // Using view offsets:
+ > var x0 = new {{alias:@stdlib/array/float64}}( [ 1.0, -2.0, 3.0, 10.0, 5.0, -1.0 ] );
+ > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+ > {{alias}}( 3, x1, 2 )
+ 9.0
+
+
+{{alias}}.ndarray( N, x, strideX, offsetX )
+ Computes the range of absolute values of a strided array using 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
+ starting index.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ x: Array|TypedArray
+ Input array.
+
+ strideX: integer
+ Stride length.
+
+ offsetX: integer
+ Starting index.
+
+ Returns
+ -------
+ out: number
+ Range of absolute values.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ 1.0, -2.0, 2.0 ];
+ > {{alias}}.ndarray( x.length, x, 1, 0 )
+ 1.0
+
+ // Using offset parameter:
+ > var x = [ 1.0, -2.0, 3.0, 10.0, 5.0, -1.0 ];
+ > {{alias}}.ndarray( 3, x, 2, 1 )
+ 9.0
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/index.d.ts
new file mode 100644
index 000000000000..906e75c2d808
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/index.d.ts
@@ -0,0 +1,93 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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
+
+///
+
+import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';
+
+/**
+* Input array.
+*/
+type InputArray = NumericArray | Collection | AccessorArrayLike;
+
+/**
+* Interface describing `rangeabs`.
+*/
+interface Routine {
+ /**
+ * Computes the range of absolute values of a strided array.
+ *
+ * @param N - number of indexed elements
+ * @param x - input array
+ * @param strideX - stride length
+ * @returns range of absolute values
+ *
+ * @example
+ * var x = [ 1.0, -2.0, 2.0 ];
+ *
+ * var v = rangeabs( x.length, x, 1 );
+ * // returns 1.0
+ */
+ ( N: number, x: InputArray, strideX: number ): number;
+
+ /**
+ * Computes the range of absolute values of a strided array using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param x - input array
+ * @param strideX - stride length
+ * @param offsetX - starting index
+ * @returns range of absolute values
+ *
+ * @example
+ * var x = [ 1.0, -2.0, 2.0 ];
+ *
+ * var v = rangeabs.ndarray( x.length, x, 1, 0 );
+ * // returns 1.0
+ */
+ ndarray( N: number, x: InputArray, strideX: number, offsetX: number ): number;
+}
+
+/**
+* Computes the range of absolute values of a strided array.
+*
+* @param N - number of indexed elements
+* @param x - input array
+* @param strideX - stride length
+* @returns range of absolute values
+*
+* @example
+* var x = [ 1.0, -2.0, 2.0 ];
+*
+* var v = rangeabs( x.length, x, 1 );
+* // returns 1.0
+*
+* @example
+* var x = [ 1.0, -2.0, 2.0 ];
+*
+* var v = rangeabs.ndarray( x.length, x, 1, 0 );
+* // returns 1.0
+*/
+declare var rangeabs: Routine;
+
+
+// EXPORTS //
+
+export = rangeabs;
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/test.ts b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/test.ts
new file mode 100644
index 000000000000..e0c532d48e68
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/docs/types/test.ts
@@ -0,0 +1,158 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 AccessorArray = require( '@stdlib/array/base/accessor' );
+import rangeabs = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs( x.length, x, 1 ); // $ExpectType number
+ rangeabs( 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...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs( '10', x, 1 ); // $ExpectError
+ rangeabs( true, x, 1 ); // $ExpectError
+ rangeabs( false, x, 1 ); // $ExpectError
+ rangeabs( null, x, 1 ); // $ExpectError
+ rangeabs( undefined, x, 1 ); // $ExpectError
+ rangeabs( [], x, 1 ); // $ExpectError
+ rangeabs( {}, x, 1 ); // $ExpectError
+ rangeabs( ( x: number ): number => x, x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs( x.length, 10, 1 ); // $ExpectError
+ rangeabs( x.length, '10', 1 ); // $ExpectError
+ rangeabs( x.length, true, 1 ); // $ExpectError
+ rangeabs( x.length, false, 1 ); // $ExpectError
+ rangeabs( x.length, null, 1 ); // $ExpectError
+ rangeabs( x.length, undefined, 1 ); // $ExpectError
+ rangeabs( x.length, {}, 1 ); // $ExpectError
+ rangeabs( x.length, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs( x.length, x, '10' ); // $ExpectError
+ rangeabs( x.length, x, true ); // $ExpectError
+ rangeabs( x.length, x, false ); // $ExpectError
+ rangeabs( x.length, x, null ); // $ExpectError
+ rangeabs( x.length, x, undefined ); // $ExpectError
+ rangeabs( x.length, x, [] ); // $ExpectError
+ rangeabs( x.length, x, {} ); // $ExpectError
+ rangeabs( x.length, x, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs(); // $ExpectError
+ rangeabs( x.length ); // $ExpectError
+ rangeabs( x.length, x ); // $ExpectError
+ rangeabs( x.length, x, 1, 10 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a number...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray( x.length, x, 1, 0 ); // $ExpectType number
+ rangeabs.ndarray( x.length, 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...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray( '10', x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( true, x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( false, x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( null, x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( undefined, x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( [], x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( {}, x, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( ( x: number ): number => x, x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray( x.length, 10, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, '10', 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, true, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, false, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, null, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, undefined, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, {}, 1, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray( x.length, x, '10', 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, true, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, false, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, null, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, undefined, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, [], 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, {}, 0 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray( x.length, x, 1, '10' ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, true ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, false ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, null ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, undefined ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, [] ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, {} ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+
+ rangeabs.ndarray(); // $ExpectError
+ rangeabs.ndarray( x.length ); // $ExpectError
+ rangeabs.ndarray( x.length, x ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1 ); // $ExpectError
+ rangeabs.ndarray( x.length, x, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/examples/index.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/examples/index.js
new file mode 100644
index 000000000000..3204aa6721e8
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var rangeabs = require( './../lib' );
+
+var x = discreteUniform( 10, -50, 50, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var v = rangeabs( x.length, x, 1 );
+console.log( v );
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/accessors.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/accessors.js
new file mode 100644
index 000000000000..f5188fb73e64
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/accessors.js
@@ -0,0 +1,92 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 abs = require( '@stdlib/math/base/special/abs' );
+
+
+// MAIN //
+
+/**
+* Computes the range of absolute values of a strided array.
+*
+* @private
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Object} x - input array object
+* @param {Collection} x.data - input array data
+* @param {Array} x.accessors - array element accessors
+* @param {integer} strideX - stride length
+* @param {NonNegativeInteger} offsetX - starting index
+* @returns {number} range of absolute values
+*
+* @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 = rangeabs( 4, arraylike2object( x ), 2, 1 );
+* // returns 3.0
+*/
+function rangeabs( N, x, strideX, offsetX ) {
+ var xbuf;
+ var get;
+ var max;
+ var min;
+ var ix;
+ var v;
+ var i;
+
+ // Cache reference to array data:
+ xbuf = x.data;
+
+ // Cache a reference to the element accessor:
+ get = x.accessors[ 0 ];
+
+ if ( N === 1 || strideX === 0 ) {
+ if ( isnan( get( xbuf, offsetX ) ) ) {
+ return NaN;
+ }
+ return 0.0;
+ }
+ ix = offsetX;
+ min = abs( get( xbuf, ix ) );
+ max = min;
+ for ( i = 1; i < N; i++ ) {
+ ix += strideX;
+ v = abs( get( xbuf, ix ) );
+ if ( isnan( v ) ) {
+ return v;
+ }
+ if ( v < min ) {
+ min = v;
+ } else if ( v > max ) {
+ max = v;
+ }
+ }
+ return max - min;
+}
+
+
+// EXPORTS //
+
+module.exports = rangeabs;
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/index.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/index.js
new file mode 100644
index 000000000000..12cec2f75f38
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/index.js
@@ -0,0 +1,59 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 the range of absolute values of a strided array.
+*
+* @module @stdlib/stats/strided/rangeabs
+*
+* @example
+* var rangeabs = require( '@stdlib/stats/strided/rangeabs' );
+*
+* var x = [ 1.0, -2.0, 2.0 ];
+*
+* var v = rangeabs( x.length, x, 1 );
+* // returns 1.0
+*
+* @example
+* var rangeabs = require( '@stdlib/stats/strided/rangeabs' );
+*
+* var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ];
+*
+* var v = rangeabs.ndarray( 4, x, 2, 1 );
+* // returns 3.0
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = main;
+
+// exports: { "ndarray": "main.ndarray" }
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/main.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/main.js
new file mode 100644
index 000000000000..7c6a20b64fa7
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/main.js
@@ -0,0 +1,50 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Computes the range of absolute values of a strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {NumericArray} x - input array
+* @param {integer} strideX - stride length
+* @returns {number} range of absolute values
+*
+* @example
+* var x = [ 1.0, -2.0, 2.0 ];
+*
+* var v = rangeabs( x.length, x, 1 );
+* // returns 1.0
+*/
+function rangeabs( N, x, strideX ) {
+ return ndarray( N, x, strideX, stride2offset( N, strideX ) );
+}
+
+
+// EXPORTS //
+
+module.exports = rangeabs;
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/ndarray.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/ndarray.js
new file mode 100644
index 000000000000..c598981773b9
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/lib/ndarray.js
@@ -0,0 +1,88 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 abs = require( '@stdlib/math/base/special/abs' );
+var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
+var accessors = require( './accessors.js' );
+
+
+// MAIN //
+
+/**
+* Computes the range of absolute values of a strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {NumericArray} x - input array
+* @param {integer} strideX - stride length
+* @param {NonNegativeInteger} offsetX - starting index
+* @returns {number} range of absolute values
+*
+* @example
+* var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ];
+*
+* var v = rangeabs( 4, x, 2, 1 );
+* // returns 3.0
+*/
+function rangeabs( N, x, strideX, offsetX ) {
+ var max;
+ var min;
+ var ix;
+ var o;
+ var v;
+ var i;
+
+ if ( N <= 0 ) {
+ return NaN;
+ }
+ o = arraylike2object( x );
+ if ( o.accessorProtocol ) {
+ return accessors( N, o, strideX, offsetX );
+ }
+ if ( N === 1 || strideX === 0 ) {
+ if ( isnan( x[ offsetX ] ) ) {
+ return NaN;
+ }
+ return 0.0;
+ }
+ ix = offsetX;
+ min = abs( x[ ix ] );
+ max = min;
+ for ( i = 1; i < N; i++ ) {
+ ix += strideX;
+ v = abs( x[ ix ] );
+ if ( isnan( v ) ) {
+ return v;
+ }
+ if ( v < min ) {
+ min = v;
+ } else if ( v > max ) {
+ max = v;
+ }
+ }
+ return max - min;
+}
+
+
+// EXPORTS //
+
+module.exports = rangeabs;
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/package.json b/lib/node_modules/@stdlib/stats/strided/rangeabs/package.json
new file mode 100644
index 000000000000..5db6b0828b44
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/package.json
@@ -0,0 +1,73 @@
+{
+ "name": "@stdlib/stats/strided/rangeabs",
+ "version": "0.0.0",
+ "description": "Calculate the range of absolute values of a strided array.",
+ "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",
+ "maximum",
+ "range",
+ "absolute",
+ "abs",
+ "extremes",
+ "dispersion",
+ "domain",
+ "extent",
+ "strided",
+ "strided array",
+ "array"
+ ],
+ "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.js
new file mode 100644
index 000000000000..7310a4845325
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.js
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 rangeabs = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof rangeabs, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof rangeabs.ndarray, 'function', 'method is a function' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.main.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.main.js
new file mode 100644
index 000000000000..a2eae1fa010b
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.main.js
@@ -0,0 +1,268 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
+var Float64Array = require( '@stdlib/array/float64' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var rangeabs = require( './../lib/main.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof rangeabs, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 3', function test( t ) {
+ t.strictEqual( rangeabs.length, 3, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function calculates the range of absolute values of a strided array', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = rangeabs( x.length, x, 1 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ x = [ -4.0, -5.0 ];
+ v = rangeabs( x.length, x, 1 );
+ t.strictEqual( v, 1.0, 'returns expected value' );
+
+ x = [ -0.0, 0.0, -0.0 ];
+ v = rangeabs( x.length, x, 1 );
+ t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+ x = [ NaN ];
+ v = rangeabs( x.length, x, 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ NaN, NaN ];
+ v = rangeabs( x.length, x, 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function calculates the range of absolute values 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 = rangeabs( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ x = [ -4.0, -5.0 ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 1.0, 'returns expected value' );
+
+ x = [ -0.0, 0.0, -0.0 ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+ x = [ NaN ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ NaN, NaN ];
+ v = rangeabs( x.length, toAccessorArray( 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`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 0, x, 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ v = rangeabs( -1, x, 1 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `1`, the function returns `0.0`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 1, x, 1 );
+ t.strictEqual( v, 0.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `1`, the function returns `0.0` (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 1, toAccessorArray( x ), 1 );
+ t.strictEqual( v, 0.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `stride` parameter', 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 = rangeabs( 4, x, 2 );
+
+ t.strictEqual( v, 3.0, '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 = rangeabs( 4, toAccessorArray( x ), 2 );
+
+ t.strictEqual( v, 3.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a negative `stride` parameter', 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 = rangeabs( 4, x, -2 );
+
+ t.strictEqual( v, 3.0, '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 = rangeabs( 4, toAccessorArray( x ), -2 );
+
+ t.strictEqual( v, 3.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided a `stride` parameter equal to `0`, the function returns `0.0`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( x.length, x, 0 );
+ t.strictEqual( v, 0.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided a `stride` parameter equal to `0`, the function returns `0.0` (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( x.length, toAccessorArray( x ), 0 );
+ t.strictEqual( v, 0.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports view offsets', 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 = rangeabs( 4, x1, 2 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.ndarray.js
new file mode 100644
index 000000000000..4c36a8077e32
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/rangeabs/test/test.ndarray.js
@@ -0,0 +1,284 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var rangeabs = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof rangeabs, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 4', function test( t ) {
+ t.strictEqual( rangeabs.length, 4, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function calculates the range of absolute values of a strided array', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
+ v = rangeabs( x.length, x, 1, 0 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ x = [ -4.0, -5.0 ];
+ v = rangeabs( x.length, x, 1, 0 );
+ t.strictEqual( v, 1.0, 'returns expected value' );
+
+ x = [ -0.0, 0.0, -0.0 ];
+ v = rangeabs( x.length, x, 1, 0 );
+ t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+ x = [ NaN ];
+ v = rangeabs( x.length, x, 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ NaN, NaN ];
+ v = rangeabs( x.length, x, 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function calculates the range of absolute values 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 = rangeabs( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 5.0, 'returns expected value' );
+
+ x = [ -4.0, -5.0 ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 1.0, 'returns expected value' );
+
+ x = [ -0.0, 0.0, -0.0 ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );
+
+ x = [ NaN ];
+ v = rangeabs( x.length, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ x = [ NaN, NaN ];
+ v = rangeabs( x.length, toAccessorArray( 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`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 0, x, 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ v = rangeabs( -1, x, 1, 0 );
+ t.strictEqual( isnan( v ), true, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if provided an `N` parameter equal to `1`, the function returns `0.0`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 1, 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 `0.0` (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( 1, toAccessorArray( x ), 1, 0 );
+ t.strictEqual( v, 0.0, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports a `stride` parameter', 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 = rangeabs( 4, x, 2, 0 );
+
+ t.strictEqual( v, 3.0, '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 = rangeabs( 4, toAccessorArray( x ), 2, 0 );
+
+ t.strictEqual( v, 3.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a negative `stride` parameter', 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 = rangeabs( 4, x, -2, 6 );
+
+ t.strictEqual( v, 3.0, '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 = rangeabs( 4, toAccessorArray( x ), -2, 6 );
+
+ t.strictEqual( v, 3.0, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if provided a `stride` parameter equal to `0`, the function returns `0.0`', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( x.length, 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 `0.0` (accessors)', function test( t ) {
+ var x;
+ var v;
+
+ x = [ 1.0, -2.0, -4.0, 5.0, 3.0 ];
+
+ v = rangeabs( x.length, 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 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 = rangeabs( 4, x, 2, 1 );
+ t.strictEqual( v, 3.0, '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 = rangeabs( 4, toAccessorArray( x ), 2, 1 );
+ t.strictEqual( v, 3.0, 'returns expected value' );
+
+ t.end();
+});