plots the data contained in self.data, which should be a dictionary or a deque of dictionaries
        for the latter use the last entry

def plot_validate(self, figure_list):
        """
        plots the data contained in self.data, which should be a dictionary or a deque of dictionaries
        for the latter use the last entry

        """
        axes_list = self.get_axes_layout_validate(figure_list)
        self._plot_validate(axes_list)