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

Project Class Documentation Show file Open project: doctrine/mongodb

stdDevSamp() 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/stdDevSamp/
See also: Expr::stdDevSamp
Since: 1.3
public stdDevSamp ( mixed | Expr $expression1 )
$expression1 mixed | Doctrine\MongoDB\Aggregation\Expr 
    public function stdDevSamp($expression1)
    {
        $this->expr->stdDevSamp(func_num_args() === 1 ? $expression1 : func_get_args());
        return $this;
    }
Project
avg
excludeIdField
getExpression
includeFields
max
min
stdDevPop
stdDevSamp
sum