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‎lib/node_modules/@stdlib/blas/ext/base/dcusum/benchmark/benchmark.native.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var resolve = require( 'path' ).resolve;
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var bench = require( '@stdlib/bench' );
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var randu = require( '@stdlib/random/base/randu' );
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var Float64Array = require( '@stdlib/array/float64' );
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var tryRequire = require( '@stdlib/utils/try-require' );
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var pkg = require( './../package.json' ).name;
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// VARIABLES //
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var dcusum = tryRequire( resolve( __dirname, './../lib/dcusum.native.js' ) );
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var opts = {
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'skip': ( dcusum instanceof Error )
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};
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {PositiveInteger} len - array length
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* @returns {Function} benchmark function
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*/
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function createBenchmark( len ) {
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var x;
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var y;
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var i;
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x = new Float64Array( len );
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y = new Float64Array( len );
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for ( i = 0; i < x.length; i++ ) {
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x[ i ] = ( randu()*20.0 ) - 10.0;
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}
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return benchmark;
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function benchmark( b ) {
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var v;
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var i;
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for ( i = 0; i < len; i++ ) {
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y[ i ] = 0.0;
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}
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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x[ 0 ] += 1.0;
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v = dcusum( x.length, 0.0, x, 1, y, 1 );
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if ( isnan( v[ i%len ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnan( v[ i%len ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var len;
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var min;
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var max;
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var f;
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var i;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( i = min; i <= max; i++ ) {
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len = pow( 10, i );
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f = createBenchmark( len );
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bench( pkg+'::native:len='+len, opts, f );
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}
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}
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main();

‎lib/node_modules/@stdlib/blas/ext/base/dcusum/benchmark/benchmark.ndarray.native.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var resolve = require( 'path' ).resolve;
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var bench = require( '@stdlib/bench' );
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var randu = require( '@stdlib/random/base/randu' );
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var pow = require( '@stdlib/math/base/special/pow' );
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var Float64Array = require( '@stdlib/array/float64' );
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var tryRequire = require( '@stdlib/utils/try-require' );
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var pkg = require( './../package.json' ).name;
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// VARIABLES //
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var dcusum = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
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var opts = {
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'skip': ( dcusum instanceof Error )
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};
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {PositiveInteger} len - array length
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* @returns {Function} benchmark function
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*/
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function createBenchmark( len ) {
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var x;
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var y;
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var i;
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x = new Float64Array( len );
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y = new Float64Array( len );
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for ( i = 0; i < x.length; i++ ) {
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x[ i ] = ( randu()*20.0 ) - 10.0;
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}
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return benchmark;
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function benchmark( b ) {
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var v;
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var i;
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for ( i = 0; i < len; i++ ) {
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y[ i ] = 0.0;
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}
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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x[ 0 ] += 1.0;
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v = dcusum( x.length, 0.0, x, 1, 0, y, 1, 0 );
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if ( isnan( v[ i%len ] ) ) {
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b.fail( 'should not return NaN' );
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}
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}
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b.toc();
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if ( isnan( v[ i%len ] ) ) {
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b.fail( 'should not return NaN' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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}
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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var len;
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var min;
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var max;
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var f;
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var i;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( i = min; i <= max; i++ ) {
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len = pow( 10, i );
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f = createBenchmark( len );
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bench( pkg+'::native:ndarray:len='+len, opts, f );
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}
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}
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main();

‎lib/node_modules/@stdlib/blas/ext/base/dcusum/lib/dcusum.native.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var addon = require( './../src/addon.node' );
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// MAIN //
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/**
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* Computes the cumulative sum of double-precision floating-point strided array elements.
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*
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* @param {PositiveInteger} N - number of indexed elements
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* @param {number} sum - initial sum
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* @param {Float64Array} x - input array
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* @param {integer} strideX - `x` stride length
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* @param {Float64Array} y - output array
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* @param {integer} strideY - `y` stride length
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* @returns {Float64Array} output array
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*
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* @example
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* var Float64Array = require( '@stdlib/array/float64' );
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*
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* var x = new Float64Array( [ 1.0, -2.0, 2.0 ] );
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* var y = new Float64Array( x.length );
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* var N = x.length;
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*
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* var v = dcusum( N, 0.0, x, 1, y, 1 );
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* // returns <Float64Array>[ 1.0, -1.0, 1.0 ]
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*/
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function dcusum( N, sum, x, strideX, y, strideY ) {
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addon( N, sum, x, strideX, y, strideY );
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return y;
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}
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// EXPORTS //
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module.exports = dcusum;

‎lib/node_modules/@stdlib/blas/ext/base/dcusum/lib/index.js

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// MODULES //
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var join = require( 'path' ).join;
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var tryRequire = require( '@stdlib/utils/try-require' );
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var dcusum = require( './main.js' );
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// MAIN //
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var tmp = tryRequire( join( __dirname, './native.js' ) );
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if ( !(tmp instanceof Error) ) {
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dcusum = tmp;
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}
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// EXPORTS //
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module.exports = dcusum;

‎lib/node_modules/@stdlib/blas/ext/base/dcusum/lib/native.js

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
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var dcusum = require( './dcusum.native.js' );
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var ndarray = require( './ndarray.native.js' );
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// MAIN //
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setReadOnly( dcusum, 'ndarray', ndarray );
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// EXPORTS //
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module.exports = dcusum;

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