Plots trajectory projection on the specified x and y axes
        See :meth:`InferenceResult.plot_trajectory_projection()` for information on the arguments and keyword arguments

        :param x_axis: variable to be plotted on the x axis of the projection
        :param y_axis: variable to be plotted on the y axis of the projection
        :param args: arguments to be passed to :meth:`InferenceResult.plot_trajectory_projection()`
        :param kwargs: keyword arguments to be passed to :meth:`InferenceResult.plot_trajectory_projection()`

def plot_trajectory_projection(self, x_axis, y_axis,
                                   *args, **kwargs):
        """
        Plots trajectory projection on the specified x and y axes
        See :meth:`InferenceResult.plot_trajectory_projection()` for information on the arguments and keyword arguments

        :param x_axis: variable to be plotted on the x axis of the projection
        :param y_axis: variable to be plotted on the y axis of the projection
        :param args: arguments to be passed to :meth:`InferenceResult.plot_trajectory_projection()`
        :param kwargs: keyword arguments to be passed to :meth:`InferenceResult.plot_trajectory_projection()`
        """
        # Just plot all of the trajectories
        for result in self.results:
            result.plot_trajectory_projection(x_axis, y_axis,
                                              *args, **kwargs)