max.js (1106B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MAIN // 22 23 /** 24 * Returns the maximum value. 25 * 26 * @private 27 * @param {ndarrayLike} arr - input array 28 * @param {number} j - column index for which to get the maximum 29 * @param {number} len - number of rows in arr 30 * @returns {number} maximum value 31 */ 32 function max( arr, j, len ) { 33 var max; 34 var x; 35 var i; 36 37 max = arr.get( 0, j ); 38 for ( i = 1; i < len; i++ ) { 39 x = arr.get( i, j ); 40 if ( x > max ) { 41 max = x; 42 } 43 } 44 return max; 45 } 46 47 48 // EXPORTS // 49 50 module.exports = max;