def print_clusterprocedure():
    """Print clustering guide."""
    print(
        """
          In ``PySPLIT``
          1. Create ``TrajectoryGroup`` with desired set of trajectories
          2. ``TrajectoryGroup.make_infile()``

          In ``HYSPLIT``
          3. Trajectory --> Special Runs --> Clustering --> Standard
          4. Adjust clustering parameters and working folder
             (where output will be stored, where INFILE lives)
          5. ``Run cluster analysis``
          6. Determine and set appropriate number of clusters
          7. Assign trajectories to clusters (``Run``)
          8. ``Display Means``, ``Quit``

          In ``PySPLIT``
          9. ``spawn_clusters()``"""
        )
