Wallogit.com
2017 © Pedro Peláez
Get random elements based on probabilty, (*1)
$randomizer = new Randomizer();
$randomizer->add( new Element('Banana', 70))
->add( new Element('Apple', 30));
$randomFruit = $randomizer->get(); // Chance of Banana is 70%
In some cases, you want to add multiple items and retrieve the probabilty of an item., (*2)
$randomizer = new Randomizer();
$randomizer->add( new Element('Banana', 2))
->add( new Element('Apple', 1))
->add( new Element('Banana', 2));
$probability = $randomizer->getProbabilityFor('Banana');
echo $probability; // outputs 0.8
You don't need to create Element wrapper objects. You can just add your elements to the Randomizer:, (*3)
$randomizer = new Randomizer();
$randomizer->add('banana')->add('apple');
// with weight
$randomizer->add('banana', 10)->add('apple', 5);
Note: If you add multiple identical items, they will be combined into a single element with adjusted weight., (*4)
MIT
statistics library random randomizer probability