105 lines
3.0 KiB
JavaScript
105 lines
3.0 KiB
JavaScript
|
/**
|
||
|
|
* @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 isPositiveInteger = require( '@stdlib/assert/is-positive-integer' );
|
||
|
|
var isObject = require( '@stdlib/assert/is-plain-object' );
|
||
|
|
var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
|
||
|
|
var hasOwnProp = require( '@stdlib/assert/has-own-property' );
|
||
|
|
var roundn = require( '@stdlib/math/base/special/roundn' );
|
||
|
|
|
||
|
|
|
||
|
|
// MAIN //
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Pretty-print output of test.
|
||
|
|
*
|
||
|
|
* @param {Object} [opts] - options object
|
||
|
|
* @param {PositiveInteger} [opts.digits=4] - number of digits after the decimal point
|
||
|
|
* @param {boolean} [opts.decision=true] - boolean indicating whether to print the test decision
|
||
|
|
* @throws {TypeError} options argument must be an object
|
||
|
|
* @throws {TypeError} must provide valid options
|
||
|
|
* @returns {string} formatted output
|
||
|
|
*/
|
||
|
|
function print( opts ) { // eslint-disable-line stdlib/no-redeclare
|
||
|
|
/* eslint-disable no-invalid-this */
|
||
|
|
var decision;
|
||
|
|
var dgts;
|
||
|
|
var str;
|
||
|
|
|
||
|
|
dgts = 4;
|
||
|
|
decision = true;
|
||
|
|
if ( arguments.length > 0 ) {
|
||
|
|
if ( !isObject( opts ) ) {
|
||
|
|
throw new TypeError( 'invalid argument. First argument must be an options object. Value: `' + opts + '`.' );
|
||
|
|
}
|
||
|
|
if ( hasOwnProp( opts, 'digits' ) ) {
|
||
|
|
if ( !isPositiveInteger( opts.digits ) ) {
|
||
|
|
throw new TypeError( 'invalid option. `digits` option must be a positive integer. Option: `' + opts.digits + '`.' );
|
||
|
|
}
|
||
|
|
dgts = opts.digits;
|
||
|
|
}
|
||
|
|
if ( hasOwnProp( opts, 'decision' ) ) {
|
||
|
|
if ( !isBoolean( opts.decision ) ) {
|
||
|
|
throw new TypeError( 'invalid option. `decision` option must be a boolean primitive. Option: `' + opts.decision + '`.' );
|
||
|
|
}
|
||
|
|
decision = opts.decision;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
str = '';
|
||
|
|
str += this.method;
|
||
|
|
str += '\n\n';
|
||
|
|
str += 'Null hypothesis: the CDF of `x` is ';
|
||
|
|
switch ( this.alternative ) {
|
||
|
|
case 'two-sided':
|
||
|
|
default:
|
||
|
|
str += 'equal to ';
|
||
|
|
break;
|
||
|
|
case 'less':
|
||
|
|
str += 'greater than or equal to ';
|
||
|
|
break;
|
||
|
|
case 'greater':
|
||
|
|
str += 'less than or equal to ';
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
str += 'the reference CDF';
|
||
|
|
str += '\n\n';
|
||
|
|
str += ' pValue: ' + roundn( this.pValue, -dgts ) + '\n';
|
||
|
|
str += ' statistic: ' + roundn( this.statistic, -dgts );
|
||
|
|
str += '\n\n';
|
||
|
|
if ( decision ) {
|
||
|
|
str += 'Test Decision: ';
|
||
|
|
if ( this.rejected ) {
|
||
|
|
str += 'Reject null in favor of alternative at ' + (this.alpha*100) + '% significance level';
|
||
|
|
} else {
|
||
|
|
str += 'Fail to reject null in favor of alternative at ' + (this.alpha*100) + '% significance level';
|
||
|
|
}
|
||
|
|
str += '\n';
|
||
|
|
}
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// EXPORTS //
|
||
|
|
|
||
|
|
module.exports = print;
|