Doctrine\MongoDB\Aggregation\Stage\Project::stdDevPop PHP Method

stdDevPop() public method

The argument can be any expression as long as it resolves to an array.
See also: https://docs.mongodb.org/manual/reference/operator/aggregation/stdDevPop/
See also: Expr::stdDevPop
Since: 1.3
public stdDevPop ( mixed | Expr $expression1 )
$expression1 mixed | Doctrine\MongoDB\Aggregation\Expr
    public function stdDevPop($expression1)
    {
        $this->expr->stdDevPop(func_num_args() === 1 ? $expression1 : func_get_args());
        return $this;
    }