docs: document provided arguments

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/nanmin-by/lib/main.js

@@ -61,6 +61,8 @@ function nanminBy( arrays, clbk, thisArg ) {
 	* @private
 	* @param {*} value - current array element
 	* @param {NonNegativeInteger} aidx - current array element index
+	* @param {NonNegativeInteger} sidx - current strided array element index
+	* @param {Collection} arr - input array
 	* @returns {*} result
 	*/
 	function wrapper( value, aidx ) {