public function setWindow($window)
    {
        $window = abs(intval($window));
        $this->window = $window;

        return $this;
    }
public function setWindow($window)
    {
        $window = abs(intval($window));
        $this->window = $window;

        return $this;
    }
public function setWindow ( $ window ) { $ window = abs ( intval ( $ window ) ) ; $ this -> window = $ window ; return $ this ; }
Set the window value

@param  integer $window The window value.
@return self    Returns an instance of self for method chaining.
Set the window value