public function max($max=null)
    {
        $max = LambdaUtils::toSelectCallable($max);
        $temp = $this->select($max)->toArray();
        return max($temp);
    }
public function max($max=null)
    {
        $max = LambdaUtils::toSelectCallable($max);
        $temp = $this->select($max)->toArray();
        return max($temp);
    }
public function max ( $ max = null ) { $ max = LambdaUtils :: toSelectCallable ( $ max ) ; $ temp = $ this -> select ( $ max ) -> toArray ( ) ; return max ( $ temp ) ; }
Find the biggest value from given expression
@param callable|string|null $max
@return numeric
Find the biggest value from given expression