fixed ndarray.js ESLint issue

Author: gkbishnoi07

lib/node_modules/@stdlib/stats/base/variancewd/lib/ndarray.js

@@ -19,6 +19,7 @@
 'use strict';
 
 // MODULES //
+
 var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
 var accessors = require( './accessors.js' );
 
@@ -66,6 +67,8 @@ var accessors = require( './accessors.js' );
 * -   Welford, B. P. 1962. "Note on a Method for Calculating Corrected Sums of Squares and Products." _Technometrics_ 4 (3). Taylor & Francis: 419–20. doi:[10.1080/00401706.1962.10490022](https://doi.org/10.1080/00401706.1962.10490022).
 * -   van Reeken, A. J. 1968. "Letters to the Editor: Dealing with Neely's Algorithms." _Communications of the ACM_ 11 (3): 149–50. doi:[10.1145/362929.362961](https://doi.org/10.1145/362929.362961).
 *
+*/
+
 /**
 * Computes the variance of a strided array using Welford's algorithm.
 *
@@ -77,11 +80,15 @@ var accessors = require( './accessors.js' );
 * @returns {number} variance
 */
 function variancewd(N, correction, x, strideX, offsetX) {
-	var delta;
+	var offsetX;
+	var strideX;
 	var delta2;
-	var mu;
+	var delta;
+	var correction;
 	var M2;
+	var mu;
 	var ix;
+	var N;
 	var v;
 	var n;
 	var o;