Auto-generated commit

Author: stdlib-bot

CHANGELOG.md

@@ -4,14 +4,25 @@
 
 <section class="release" id="unreleased">
 
-## Unreleased (2025-03-26)
+## Unreleased (2025-04-11)
+
+<section class="features">
+
+### Features
+
+-   [`ce86a5d`](https://github.com/stdlib-js/stdlib/commit/ce86a5d7a15f0bc79349d46ecbc661f270c7025b) - add C ndarray interface and refactor implementation for `stats/base/dmeanpn` [(#6510)](https://github.com/stdlib-js/stdlib/pull/6510)
+
+</section>
+
+<!-- /.features -->
 
 <section class="commits">
 
 ### Commits
 
 <details>
 
+-   [`ce86a5d`](https://github.com/stdlib-js/stdlib/commit/ce86a5d7a15f0bc79349d46ecbc661f270c7025b) - **feat:** add C ndarray interface and refactor implementation for `stats/base/dmeanpn` [(#6510)](https://github.com/stdlib-js/stdlib/pull/6510) _(by Gururaj Gurram, Athan Reines)_
 -   [`eca796b`](https://github.com/stdlib-js/stdlib/commit/eca796be22370f8e6ffce1157bd077e14428c236) - **refactor:** update paths _(by Aayush Khanna)_
 -   [`62364f6`](https://github.com/stdlib-js/stdlib/commit/62364f62ea823a3b52c2ad25660ecd80c71f8f36) - **style:** fix C comment alignment _(by Philipp Burckhardt)_
 -   [`dbb5935`](https://github.com/stdlib-js/stdlib/commit/dbb59359010b9ac0a404604914d5db63f8fadcbc) - **refactor:** update `stats/base/dmeanpn` native addon from C++ to C [(#4100)](https://github.com/stdlib-js/stdlib/pull/4100) _(by Aayush Khanna)_
@@ -29,10 +40,11 @@
 
 ### Contributors
 
-A total of 3 people contributed to this release. Thank you to the following contributors:
+A total of 4 people contributed to this release. Thank you to the following contributors:
 
 -   Aayush Khanna
 -   Athan Reines
+-   Gururaj Gurram
 -   Philipp Burckhardt
 
 </section>

CONTRIBUTORS

@@ -43,6 +43,7 @@ Dev Goel <135586571+corsairier@users.noreply.github.com>
 Dhanyabad behera <110620935+dhanyabad11@users.noreply.github.com>
 Dhruv Arvind Singh <154677013+DhruvArvindSingh@users.noreply.github.com>
 Dhruvil Mehta <68022411+dhruvilmehta@users.noreply.github.com>
+Dipjyoti Das <126075231+dipexplorer@users.noreply.github.com>
 Divyansh Seth <59174836+sethdivyansh@users.noreply.github.com>
 Dominic Lim <46486515+domlimm@users.noreply.github.com>
 Dominik Moritz <domoritz@gmail.com>
@@ -75,7 +76,8 @@ Jordan Gallivan <115050475+Jordan-Gallivan@users.noreply.github.com>
 Joris Labie <joris.labie1@gmail.com>
 Justin Dennison <justin1dennison@gmail.com>
 Justyn Shelby <96994781+ShelbyJustyn@users.noreply.github.com>
-Karan Anand <119553199+anandkaranubc@users.noreply.github.com>
+Karan Anand <anandkarancompsci@gmail.com>
+Karan Yadav <77043443+karanBRAVO@users.noreply.github.com>
 Karthik Prakash <116057817+skoriop@users.noreply.github.com>
 Kaushikgtm <162317291+Kaushikgtm@users.noreply.github.com>
 Kavyansh-Bagdi <153486713+Kavyansh-Bagdi@users.noreply.github.com>
@@ -85,6 +87,7 @@ Krishnendu Das <86651039+itskdhere@users.noreply.github.com>
 Kshitij-Dale <152467202+Kshitij-Dale@users.noreply.github.com>
 Lovelin Dhoni J B <100030865+lovelindhoni@users.noreply.github.com>
 MANI <77221000+Eternity0207@users.noreply.github.com>
+Mahfuza Humayra Mohona <mhmohona@gmail.com>
 Manik Sharma <maniksharma.rke@gmail.com>
 Manvith M <148960168+manvith2003@users.noreply.github.com>
 Marcus Fantham <mfantham@users.noreply.github.com>
@@ -95,9 +98,12 @@ Mohammad Bin Aftab <48010758+MohammadBinAftab@users.noreply.github.com>
 Mohammad Kaif <mdkaifprofession@gmail.com>
 Momtchil Momtchev <momtchil@momtchev.com>
 Muhammad Haris <harriskhan047@outlook.com>
+Muhammad Taaha Tariq <166188821+Taaha-Tariq@users.noreply.github.com>
+Muhmmad Saad <106260977+saad-imran-dev@users.noreply.github.com>
 Naresh Jagadeesan <naresh.naresh000@gmail.com>
 Naveen Kumar <stupiddint@gmail.com>
 Neeraj Pathak <neerajrpathak710@gmail.com>
+NirvedMishra <139633597+NirvedMishra@users.noreply.github.com>
 Nishant Shinde <97207366+nishant-s7@users.noreply.github.com>
 Nishchay Rajput <121144841+NishchayRajput@users.noreply.github.com>
 Nithin Katta <88046362+nithinkatta@users.noreply.github.com>
@@ -111,8 +117,10 @@ Prajwal Kulkarni <prajwalkulkarni76@gmail.com>
 Pranav Goswami <pranavchiku11@gmail.com>
 Pranjal Jha <97080887+PraneGIT@users.noreply.github.com>
 Prashant Kumar Yadav <144602492+0PrashantYadav0@users.noreply.github.com>
+PrathamBhamare <164445568+PrathamBhamare@users.noreply.github.com>
 Pratik Singh <97464067+Pratik772846@users.noreply.github.com>
 Pratyush Kumar Chouhan <pratyushkumar0308@gmail.com>
+Pravesh Kunwar <praveshkunwar04@gmail.com>
 Priyansh Prajapati <88396544+itsspriyansh@users.noreply.github.com>
 Priyanshu Agarwal <113460573+AgPriyanshu18@users.noreply.github.com>
 Pulkit Gupta <65711278+pulkitgupta2@users.noreply.github.com>
@@ -126,11 +134,15 @@ Rishav <115060907+rishav2404@users.noreply.github.com>
 Rishav Tarway <rishavtarway@gmail.com>
 Robert Gislason <gztown2216@yahoo.com>
 Roman Stetsyk <25715951+romanstetsyk@users.noreply.github.com>
+Rupa <102663541+Rupa-Rd@users.noreply.github.com>
 Rutam Kathale <138517416+performant23@users.noreply.github.com>
 Ruthwik Chikoti <145591715+ruthwikchikoti@users.noreply.github.com>
 Ryan Seal <splrk@users.noreply.github.com>
 Rylan Yang <137365285+rylany27@users.noreply.github.com>
+SAHIL KUMAR <168997976+sahilk45@users.noreply.github.com>
 SHIVAM YADAV <120725381+Shivam-1827@users.noreply.github.com>
+Sahil Goyal <87982509+sahil20021008@users.noreply.github.com>
+Sai Avinash <120403424+nasarobot@users.noreply.github.com>
 Sai Srikar Dumpeti <80447788+the-r3aper7@users.noreply.github.com>
 Sanchay Ketan Sinha <122982233+satansin123@users.noreply.github.com>
 Sarthak Paandey <145528240+SarthakPaandey@users.noreply.github.com>
@@ -168,6 +180,7 @@ Yuvi Mittal <128018763+yuvi-mittal@users.noreply.github.com>
 ditsu <170345142+ditsus@users.noreply.github.com>
 ekambains <bainsinbusiness@gmail.com>
 fadiothman22 <48636283+fadiothman22@users.noreply.github.com>
+lohithganni <116790357+lohithganni@users.noreply.github.com>
 olenkabilonizhka <62379231+olenkabilonizhka@users.noreply.github.com>
 pranav-1720 <123018993+pranav-1720@users.noreply.github.com>
 rahulrangers <127782777+rahulrangers@users.noreply.github.com>

README.md

@@ -84,36 +84,33 @@ To view installation and usage instructions specific to each branch build, be su
 var dmeanpn = require( '@stdlib/stats-base-dmeanpn' );
 ```
 
-#### dmeanpn( N, x, stride )
+#### dmeanpn( N, x, strideX )
 
-Computes the [arithmetic mean][arithmetic-mean] of a double-precision floating-point strided array `x` using a two-pass error correction algorithm.
+Computes the [arithmetic mean][arithmetic-mean] of a double-precision floating-point strided array using a two-pass error correction algorithm.
 
 ```javascript
 var Float64Array = require( '@stdlib/array-float64' );
 
 var x = new Float64Array( [ 1.0, -2.0, 2.0 ] );
-var N = x.length;
 
-var v = dmeanpn( N, x, 1 );
+var v = dmeanpn( x.length, x, 1 );
 // returns ~0.3333
 ```
 
 The function has the following parameters:
 
 -   **N**: number of indexed elements.
 -   **x**: input [`Float64Array`][@stdlib/array/float64].
--   **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 [arithmetic mean][arithmetic-mean] 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 [arithmetic mean][arithmetic-mean] of every other element in `x`,
 
 ```javascript
 var Float64Array = require( '@stdlib/array-float64' );
-var floor = require( '@stdlib/math-base-special-floor' );
 
 var x = new Float64Array( [ 1.0, 2.0, 2.0, -7.0, -2.0, 3.0, 4.0, 2.0 ] );
-var N = floor( x.length / 2 );
 
-var v = dmeanpn( N, x, 2 );
+var v = dmeanpn( 4, x, 2 );
 // returns 1.25
 ```
 
@@ -123,45 +120,39 @@ 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 = dmeanpn( N, x1, 2 );
+var v = dmeanpn( 4, x1, 2 );
 // returns 1.25
 ```
 
-#### dmeanpn.ndarray( N, x, stride, offset )
+#### dmeanpn.ndarray( N, x, strideX, offsetX )
 
 Computes the [arithmetic mean][arithmetic-mean] of a double-precision floating-point strided array using a two-pass error correction algorithm and alternative indexing semantics.
 
 ```javascript
 var Float64Array = require( '@stdlib/array-float64' );
 
 var x = new Float64Array( [ 1.0, -2.0, 2.0 ] );
-var N = x.length;
 
-var v = dmeanpn.ndarray( N, x, 1, 0 );
+var v = dmeanpn.ndarray( x.length, x, 1, 0 );
 // returns ~0.33333
 ```
 
 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 [arithmetic mean][arithmetic-mean] 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 [arithmetic mean][arithmetic-mean] for every other element in `x` starting from the second element
 
 ```javascript
 var Float64Array = require( '@stdlib/array-float64' );
-var floor = require( '@stdlib/math-base-special-floor' );
 
 var x = new Float64Array( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ] );
-var N = floor( x.length / 2 );
 
-var v = dmeanpn.ndarray( N, x, 2, 1 );
+var v = dmeanpn.ndarray( 4, x, 2, 1 );
 // returns 1.25
 ```
 
@@ -208,6 +199,123 @@ console.log( v );
 
 <!-- /.examples -->
 
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- 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 -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/stats/base/dmeanpn.h"
+```
+
+#### stdlib_strided_dmeanpn( N, \*X, strideX )
+
+Computes the [arithmetic mean][arithmetic-mean] of a double-precision floating-point strided array using a two-pass error correction algorithm.
+
+```c
+const double x[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 };
+
+double v = stdlib_strided_dmeanpn( 4, x, 2 );
+// returns 4.0
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **X**: `[in] double*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+
+```c
+double stdlib_strided_dmeanpn( const CBLAS_INT N, const double *X, const CBLAS_INT strideX );
+```
+
+#### stdlib_strided_dmeanpn_ndarray( N, \*X, strideX, offsetX )
+
+Computes the [arithmetic mean][arithmetic-mean] of a double-precision floating-point strided array using a two-pass error correction algorithm and alternative indexing semantics.
+
+```c
+const double x[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 };
+
+double v = stdlib_strided_dmeanpn_ndarray( 4, x, 2, 0 );
+// returns 4.0
+```
+
+The function accepts the following arguments:
+
+-   **N**: `[in] CBLAS_INT` number of indexed elements.
+-   **X**: `[in] double*` input array.
+-   **strideX**: `[in] CBLAS_INT` stride length for `X`.
+-   **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+
+```c
+double stdlib_strided_dmeanpn_ndarray( const CBLAS_INT N, const double *X, const CBLAS_INT strideX, const CBLAS_INT offsetX );
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+### Examples
+
+```c
+#include "stdlib/stats/base/dmeanpn.h"
+#include <stdio.h>
+
+int main( void ) {
+    // Create a strided array:
+    const double x[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 };
+
+    // Specify the number of elements:
+    const int N = 4;
+
+    // Specify the stride length:
+    const int strideX = 2;
+
+    // Compute the arithmetic mean:
+    double v = stdlib_strided_dmeanpn( N, x, strideX );
+
+    // Print the result:
+    printf( "mean: %lf\n", v );
+}
+```
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
 * * *
 
 <section class="references">

benchmark/benchmark.js

@@ -21,14 +21,20 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench-harness' );
-var randu = require( '@stdlib/random-base-randu' );
 var isnan = require( '@stdlib/math-base-assert-is-nan' );
 var pow = require( '@stdlib/math-base-special-pow' );
-var Float64Array = require( '@stdlib/array-float64' );
+var uniform = require( '@stdlib/random-array-uniform' );
 var pkg = require( './../package.json' ).name;
 var dmeanpn = require( './../lib/dmeanpn.js' );
 
 
+// VARIABLES //
+
+var options = {
+	'dtype': 'float64'
+};
+
+
 // FUNCTIONS //
 
 /**
@@ -39,13 +45,7 @@ var dmeanpn = require( './../lib/dmeanpn.js' );
 * @returns {Function} benchmark function
 */
 function createBenchmark( len ) {
-	var x;
-	var i;
-
-	x = new Float64Array( len );
-	for ( i = 0; i < x.length; i++ ) {
-		x[ i ] = ( randu()*20.0 ) - 10.0;
-	}
+	var x = uniform( len, -10.0, 10.0, options );
 	return benchmark;
 
 	function benchmark( b ) {