55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
/**
|
|
* @license Apache-2.0
|
|
*
|
|
* Copyright (c) 2020 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';
|
|
|
|
/**
|
|
* Chi-square independence test.
|
|
*
|
|
* @module @stdlib/stats/chi2test
|
|
*
|
|
* @example
|
|
* var chi2test = require( '@stdlib/stats/chi2test' );
|
|
*
|
|
* var x = [ [ 20, 30 ], [ 30, 20 ] ];
|
|
* var out = chi2test( x );
|
|
* // returns { 'rejected': false, 'alpha': 0.05, 'pValue': ~0.072, ... }
|
|
*
|
|
* var table = out.print();
|
|
* /*
|
|
* Chi-square independence test
|
|
*
|
|
* Null hypothesis: the two variables are independent
|
|
*
|
|
* pValue: 0.0719
|
|
* statistic: 3.24
|
|
* degrees of freedom: 1
|
|
*
|
|
* Test Decision: Fail to reject null in favor of alternative at 5% significance level
|
|
* /*
|
|
*/
|
|
|
|
// MODULES //
|
|
|
|
var chi2test = require( './main.js' );
|
|
|
|
|
|
// EXPORTS //
|
|
|
|
module.exports = chi2test;
|