/** * @license Apache-2.0 * * Copyright (c) 2018 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 factory = require( './factory.js' ); // MAIN // /** * Generates a beta prime distributed random number. * * @name betaprime * @type {PRNG} * @param {PositiveNumber} alpha - first shape parameter * @param {PositiveNumber} beta - second shape parameter * @returns {PositiveNumber} pseudorandom number * * @example * var r = betaprime( 2.0, 5.0 ); * // returns * * @example * var r = betaprime( -2.0, 5.0 ); * // returns NaN */ var betaprime = factory(); // EXPORTS // module.exports = betaprime;