WienerSachtextFormel1Calculator::calculate()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 16

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
nc 1
nop 1
dl 0
loc 16
rs 9.7333
c 0
b 0
f 0
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<?php
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/**
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 * Copyright (c) Andreas Heigl<[email protected]>
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 *
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 * @author    Andreas Heigl<[email protected]>
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 * @copyright Andreas Heigl
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 * @license   http://www.opensource.org/licenses/mit-license.php MIT-License
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 * @since     12.10.2016
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 * @link      http://github.com/heiglandreas/org.heigl.TextStatistics
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 */
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namespace Org_Heigl\TextStatistics\Calculator;
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use Org_Heigl\TextStatistics\Text;
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/**
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 * Class FleschReadingEaseCalculator
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 *
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 * This class provides ways to calculate the FleschReadingEase-Index.
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 *
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 * @see https://de.wikipedia.org/wiki/Lesbarkeitsindex
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 * @package Org_Heigl\TextStatistics\Calculator
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 */
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class WienerSachtextFormel1Calculator implements CalculatorInterface
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{
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    protected $percentWordsWithMoreThanThreeSyllables;
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    protected $averageSentenceLenght;
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    protected $percentWordsWithMoreThanSixChars;
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    protected $percentSingleSyllableWords;
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    public function __construct(
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        WordsWithNSyllablesPercentCalculator $percentWordsWithMoreThanThreeSyllables,
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        AverageSentenceLengthCalculator $averageSentenceLenght,
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        WordsWithNCharsPercentCalculator $percentWordsWithMoreThanSixChars,
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        WordsWithNSyllablesOnlyPercentCalculator $percentSingleSyllableWords
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    ) {
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        $this->percentWordsWithMoreThanThreeSyllables = $percentWordsWithMoreThanThreeSyllables;
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        $this->averageSentenceLenght = $averageSentenceLenght;
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        $this->percentWordsWithMoreThanSixChars = $percentWordsWithMoreThanSixChars;
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        $this->percentSingleSyllableWords = $percentSingleSyllableWords;
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    }
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    /**
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     * Do the actual calculation of a statistic
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     *
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     * @param Text $text
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     *
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     * @see https://de.wikipedia.org/wiki/Lesbarkeitsindex
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     * @return mixed
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     */
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    public function calculate(Text $text)
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    {
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        $percentWordsWithMoreThanThreeSyllables = $this->percentWordsWithMoreThanThreeSyllables->calculate($text);
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        $averageSentenceLenght = $this->averageSentenceLenght->calculate($text);
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        $percentWordsWithMoreThanSixChars = $this->percentWordsWithMoreThanSixChars->calculate($text);
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        $percentSingleSyllableWords = $this->percentSingleSyllableWords->calculate($text);
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        return 0.1935 * $percentWordsWithMoreThanThreeSyllables
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             + 0.1672 * $averageSentenceLenght
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             + 0.1297 * $percentWordsWithMoreThanSixChars
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             - 0.0327 * $percentSingleSyllableWords
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             - 0.875;
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    }
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}
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