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Doctrine
MongoDB
Aggregation
Stage
Group
stdDevSamp
Doctrine\MongoDB\Aggregation\Stage\Group::stdDevSamp PHP Method
Group Class Documentation
Datei anzeigen
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
$expression
)
$expression
mixed
|
Doctrine\MongoDB\Aggregation\Expr
public function stdDevSamp($expression) { $this->expr->stdDevSamp($expression); return $this; }
Group
__construct
addToSet
avg
expression
field
first
getExpression
last
max
min
push
stdDevPop
stdDevSamp
sum