public function min_max_sum_average_and_count_for_non_empty()
{
Sequence::of([1, 2, 3, 4])->collecting($min, Aggregations::min())->collecting($max, Aggregations::max())->collecting($average, Aggregations::average())->collecting($sum, Aggregations::sum())->collecting($count, Aggregations::count())->each();
$this->assertEquals(1, $min);
$this->assertEquals(4, $max);
$this->assertEquals(2.5, $average);
$this->assertEquals(10, $sum);
$this->assertEquals(4, $count);
}
/**
* Creates a new collector to calculate an average for all the given elements. Uses
* the given function to produce a number for each element. If omitted, uses the
* elements themselves.
*
* @param function(var): var $num
* @return util.data.ICollector
*/
public static function averaging($num = null)
{
return Aggregations::average($num);
}
