index.js (1332B)
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 /** 22 * Chi-square goodness-of-fit test. 23 * 24 * @module @stdlib/stats/chi2gof 25 * 26 * @example 27 * var chi2gof = require( '@stdlib/stats/chi2gof' ); 28 * var x = [ 89, 37, 30, 28, 2 ]; 29 * var p = [ 0.40, 0.20, 0.20, 0.15, 0.05 ]; 30 * 31 * var out = chi2gof( x, p ); 32 * 33 * var o = out.toJSON(); 34 * // returns { 'pValue': ~0.0406, 'statistic': ~9.9901, ... } 35 * 36 * var table = out.toString(); 37 * /* 38 * Null hypothesis: population probabilities are equal to those in p 39 * 40 * pValue: 0.0406 41 * statistic: 9.9901 42 * degrees of freedom: 4 43 * 44 * Test Decision: Reject null in favor of alternative at 5% significance level 45 * /* 46 */ 47 48 // MODULES // 49 50 var chi2gof = require( './main.js' ); 51 52 53 // EXPORTS // 54 55 module.exports = chi2gof;