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43 lines
1.0 KiB
PHP
Executable File
43 lines
1.0 KiB
PHP
Executable File
<?php
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/**
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* Karaka
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*
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* PHP Version 8.1
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*
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* @package phpOMS\Math\Statistic\Forecast
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* @copyright Dennis Eichhorn
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* @license OMS License 1.0
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* @version 1.0.0
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* @link https://karaka.app
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*/
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declare(strict_types=1);
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namespace phpOMS\Math\Statistic\Forecast;
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/**
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* General forecasts helper class.
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*
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* @package phpOMS\Math\Statistic\Forecast
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* @license OMS License 1.0
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* @link https://karaka.app
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* @since 1.0.0
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*/
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final class Forecasts
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{
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/**
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* Get forecast/prediction interval.
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*
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* @param float $forecast Forecast value
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* @param float $standardDeviation Standard Deviation of forecast
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* @param float $interval Forecast multiplier for prediction intervals
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*
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* @return array<int|float>
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*
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* @since 1.0.0
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*/
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public static function getForecastInteval(float $forecast, float $standardDeviation, float $interval = 1.96) : array
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{
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return [$forecast - $interval * $standardDeviation, $forecast + $interval * $standardDeviation];
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}
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}
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