feat: refactor and add protocol support to stats/base/max-by

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Author: shwetasrsh

lib/node_modules/@stdlib/stats/base/max-by/README.md

@@ -49,7 +49,7 @@ The function has the following parameters:
 
 -   **N**: number of indexed elements.
 -   **x**: input [`Array`][mdn-array], [`typed array`][mdn-typed-array], or an array-like object (excluding strings and functions).
--   **stride**: index increment.
+-   **stride**: stride length.
 -   **clbk**: callback function.
 -   **thisArg**: execution context (_optional_).
 

lib/node_modules/@stdlib/stats/base/max-by/test/test.max_by.js

@@ -152,7 +152,7 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
 	t.end();
 });
 
-tape( 'the function calculates the maximum value of a accessor array via a callback function', function test( t ) {
+tape( 'the function calculates the maximum value of a strided array(accessor) via a callback function', function test( t ) {
 	var x;
 	var v;