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* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var numelDimension = require( '@stdlib/ndarray/base/numel-dimension' );
var getStride = require( '@stdlib/ndarray/base/stride' );
var getOffset = require( '@stdlib/ndarray/base/offset' );
var getData = require( '@stdlib/ndarray/base/data-buffer' );
var strided = require( '@stdlib/stats/strided/mskmax' ).ndarray;
// MAIN //
/**
* Computes the maximum value of a one-dimensional ndarray according to a mask.
*
* @param {ArrayLikeObject<Object>} arrays - array-like object containing an input ndarray and a mask ndarray
* @returns {number} maximum value
*
* @example
* var ndarray = require( '@stdlib/ndarray/base/ctor' );
*
* var xbuf = [ 1.0, -2.0, 4.0, 2.0 ];
* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
*
* var maskbuf = [ 0, 0, 1, 0 ];
* var mask = new ndarray( 'generic', maskbuf, [ 4 ], [ 1 ], 0, 'row-major' );
*
* var v = mskmax( [ x, mask ] );
* // returns 2.0
*/
function mskmax( arrays ) {
var mask = arrays[ 1 ];
var x = arrays[ 0 ];
return strided( numelDimension( x, 0 ), getData( x ), getStride( x, 0 ), getOffset( x ), getData( mask ), getStride( mask, 0 ), getOffset( mask ) ); // eslint-disable-line max-len
}
// EXPORTS //
module.exports = mskmax;
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