bench: update random value generation for stats/base/dists/exponential

PR-URL: #10330

Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>
Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: Witty-31-06

lib/node_modules/@stdlib/stats/base/dists/exponential/cdf/benchmark/benchmark.js

@@ -21,8 +21,7 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var Float64Array = require( '@stdlib/array/float64' );
-var uniform = require( '@stdlib/random/base/uniform' );
+var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var EPS = require( '@stdlib/constants/float64/eps' );
 var pkg = require( './../package.json' ).name;
@@ -33,22 +32,20 @@ var cdf = require( './../lib' );
 
 bench( pkg, function benchmark( b ) {
 	var lambda;
-	var len;
+	var opts;
 	var x;
 	var y;
 	var i;
 
-	len = 100;
-	x = new Float64Array( len );
-	lambda = new Float64Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = uniform( 0.0, 100.0 );
-		lambda[ i ] = uniform( EPS, 100.0 );
-	}
+	opts = {
+		'dtype': 'float64'
+	};
+	x = uniform( 100, 0.0, 100.0, opts );
+	lambda = uniform( 100, EPS, 100.0, opts );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		y = cdf( x[ i % len ], lambda[ i % len ] );
+		y = cdf( x[ i % x.length ], lambda[ i % lambda.length ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}
@@ -64,22 +61,21 @@ bench( pkg, function benchmark( b ) {
 bench( pkg+':factory', function benchmark( b ) {
 	var lambda;
 	var mycdf;
-	var len;
+	var opts;
 	var x;
 	var y;
 	var i;
 
 	lambda = 10.0;
 	mycdf = cdf.factory( lambda );
-	len = 100;
-	x = new Float64Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = uniform( EPS, 100.0 );
-	}
+	opts = {
+		'dtype': 'float64'
+	};
+	x = uniform( 100, EPS, 100.0, opts );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		y = mycdf( x[ i % len ] );
+		y = mycdf( x[ i % x.length ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}

lib/node_modules/@stdlib/stats/base/dists/exponential/cdf/benchmark/benchmark.native.js

@@ -22,8 +22,7 @@
 
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
-var Float64Array = require( '@stdlib/array/float64' );
-var uniform = require( '@stdlib/random/base/uniform' );
+var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var EPS = require( '@stdlib/constants/float64/eps' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -42,22 +41,20 @@ var opts = {
 
 bench( pkg+'::native', opts, function benchmark( b ) {
 	var lambda;
-	var len;
+	var opts;
 	var x;
 	var y;
 	var i;
 
-	len = 100;
-	x = new Float64Array( len );
-	lambda = new Float64Array( len );
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = uniform( 0.0, 100.0 );
-		lambda[ i ] = uniform( EPS, 100.0 );
-	}
+	opts = {
+		'dtype': 'float64'
+	};
+	x = uniform( 100, 0.0, 100.0, opts );
+	lambda = uniform( 100, EPS, 100.0, opts );
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		y = cdf( x[ i % len ], lambda[ i % len ] );
+		y = cdf( x[ i % x.length ], lambda[ i % lambda.length ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}