fix ESLint issue

Author: gkbishnoi07

lib/node_modules/@stdlib/stats/base/variancewd/README.md

@@ -198,7 +198,6 @@ var v = variancewd.ndarray( N, 1, x, 2, 1 );
 var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var variancewd = require( '@stdlib/stats/base/variancewd' );
 
-
 var x = discreteUniform( 10, -50, 50, {
     'dtype': 'float64'
 });

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

@@ -16,22 +16,34 @@
 * limitations under the License.
 */
 
+'use strict';
+
 /**
 * Computes the variance of a strided array using Welford's algorithm and accessors.
 *
 * @private
 * @param {PositiveInteger} N - number of indexed elements
 * @param {number} correction - degrees of freedom adjustment
-* @param {Object} x - input array object
+* @param {Object} x - input array-like object supporting the accessor protocol
 * @param {Collection} x.data - input array data
 * @param {Array<Function>} x.accessors - array element accessors
 * @param {integer} strideX - stride length
 * @param {NonNegativeInteger} offsetX - starting index
 * @returns {number} variance
+*
+* @example
+* function accessor( arr, idx ) {
+*     return arr.get( idx );
+* }
+*
+* var x = {
+*     data: [ 2.0, 4.0, 6.0, 8.0, 10.0 ],
+*     get: function( i ) { return this.data[ i ]; }
+* };
+*
+* var v = variancewd( 5, 1, x, 1, 0 );
+* // returns 10.0
 */
-
-'use strict';
-
 function variancewd(N, correction, x, strideX, offsetX) {
 	var delta2;
 	var xbuf;

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

@@ -87,19 +87,19 @@ function variancewd(N, correction, x, strideX, offsetX) {
 	var o;
 	var i;
 
-    if (N <= 0) {
-        return NaN;
-    }
-    if (N === 1 || strideX === 0) {
-        if (N - correction <= 0) {
-            return NaN;
-        }
-        return 0.0;
-    }
-    n = N - correction;
-    if (n <= 0) {
-        return NaN;
-    }
+	if (N <= 0) {
+		return NaN;
+	}
+	if (N === 1 || strideX === 0) {
+		if (N - correction <= 0) {
+			return NaN;
+		}
+		return 0.0;
+	}
+	n = N - correction;
+	if (n <= 0) {
+		return NaN;
+	}
 
     o = arraylike2object(x);
     if (o.accessorProtocol) {