79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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/**
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* One-way analysis of variance.
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*
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* @module @stdlib/stats/anova1
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*
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* @example
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* var anova1 = require( '@stdlib/stats/anova1' );
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* var x = [ 1, 3, 5, 2, 4, 6, 8, 7, 10, 11, 12, 15 ];
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* var f = [ 'control', 'treatA', 'treatB', 'treatC', 'control', 'treatA', 'treatB', 'treatC', 'control', 'treatA', 'treatB', 'treatC' ];
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*
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* var out = anova1( x, f );
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* /* returns
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* {
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* 'treatment': {
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* 'df': 3,
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* 'ss': ~20.667,
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* 'ms': ~6.889
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* }
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* 'error': {
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* 'df': 8,
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* 'ss': ~185.333,
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* 'ms': ~23.1667,
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* },
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* 'statistic': ~0.297,
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* 'pValue': ~0.826,
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* 'means': { 'control': { 'mean': 5.0, 'sampleSize': 3, 'SD': ~4.583 },
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* 'treatA': { 'mean': ~6.667, 'sampleSize': 3, 'SD': ~4.041 },
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* 'treatB': { 'mean': ~8.333, 'sampleSize': 3, 'SD': ~3.512 },
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* 'treatC': { 'mean': 8.0, 'sampleSize': 3, 'SD': ~6.557 }
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* },
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* 'method': 'One-Way ANOVA'
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* }
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* *\/
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*
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* var table = out.print();
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* /*
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* One-Way ANOVA
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*
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* Null Hypothesis: All Means Equal
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* Alternate Hypothesis: At Least one Mean not Equal
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*
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* df SS MS F Score P Value
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* Treatment 3 20.6667 6.8889 0.2974 0.8265
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* Errors 8 185.3333 23.1667
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*
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* Fail to Reject Null: 0.8265 >= 0.05
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*
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* *\/
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*/
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// MODULES //
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var anova1 = require( './anova1.js' );
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// EXPORTS //
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module.exports = anova1;
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