public static function SuggestionHelper::calculateDensity in Autocomplete Search Suggestions 3.0.x

Same name and namespace in other branches

1. 8.2 src/SuggestionHelper.php \Drupal\suggestion\SuggestionHelper::calculateDensity()
2. 8 src/SuggestionHelper.php \Drupal\suggestion\SuggestionHelper::calculateDensity()

Calculate the ngram's density.

Parameters

int $src: The ngram source.

int $atoms: The number of atoms in the ngram.

int $qty: The submission count.

Return value

float The suggestion's score.

4 calls to SuggestionHelper::calculateDensity()

SuggestionEditForm::submitForm in src/Form/SuggestionEditForm.php

AJAX callback for the indexing form.

SuggestionHelper::insert in src/SuggestionHelper.php

Add a suggestion.

SuggestionHelper::updateSrc in src/SuggestionHelper.php

Calculate the ngram's density.

suggestion_surfer_submit in ./suggestion.module

Custom submit function to add surfer suggestions.

File

src/SuggestionHelper.php, line 90

Class

SuggestionHelper

Provides helper methods for suggestions.

Namespace

Drupal\suggestion

Code

public static function calculateDensity($src = 0, $atoms = 1, $qty = 0) {
  $score = intval($src) * self::C;
  return (double) $score + self::getDelta(self::MAX - $score, intval(pow($atoms + $qty, self::EXP)));
}