uniform.js (1068B)
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 // MODULES // 22 23 var isnan = require( '@stdlib/assert/is-nan' ); 24 25 26 // MAIN // 27 28 /** 29 * Computes the uniform kernel. 30 * 31 * @private 32 * @param {number} u - input value 33 * @returns {number} kernel value at u 34 * 35 * @example 36 * var u = 0.2; 37 * var out = uniform( u ); 38 * // returns 0.5 39 */ 40 function uniform(u) { 41 if ( isnan( u ) ) { 42 return NaN; 43 } 44 if ( u < 0.0 || u > 1.0 ) { 45 return 0.0; 46 } 47 return 0.5; 48 } 49 50 51 // EXPORTS // 52 53 module.exports = uniform;