docs: clean-up example

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/stats/base/dnanmskrange/examples/index.js

@@ -19,27 +19,21 @@
 'use strict';
 
 var uniform = require( '@stdlib/random/base/uniform' );
-var filledarrayBy = require( '@stdlib/array/filled-by' );
 var bernoulli = require( '@stdlib/random/base/bernoulli' );
-var uint8Array = require( '@stdlib/random/array/bernoulli' );
+var filledarrayBy = require( '@stdlib/array/filled-by' );
 var dnanmskrange = require( './../lib' );
 
-var mask;
-var x;
-
 function rand() {
 	if ( bernoulli( 0.8 ) < 1 ) {
 		return NaN;
 	}
 	return uniform( -50.0, 50.0 );
 }
 
-x = filledarrayBy( 10, 'float64', rand );
+var x = filledarrayBy( 10, 'float64', rand );
 console.log( x );
 
-mask = uint8Array( x.length, 0.2, {
-	'dtype': 'uint8'
-});
+var mask = filledarrayBy( 10, 'uint8', bernoulli.factory( 0.2 ) );
 console.log( mask );
 
 var v = dnanmskrange( x.length, x, 1, mask, 1 );