def make_slabocean_axis(num_points=<NUM_LIT:1>):
depthax = Axis(axis_type='<STR_LIT>', num_points=num_points)<EOL>return depthax<EOL>
Convenience method to create a simple axis for a slab ocean.

    **Function-call argument** \n

    :param int num_points:    number of points for the slabocean Axis [default: 1]
    :returns:               an Axis with ``axis_type='depth'`` and ``num_points=num_points``
    :rtype:                 :class:`~climlab.domain.axis.Axis`

    :Example:

        ::

            >>> import climlab
            >>> slab_ocean_axis = climlab.domain.make_slabocean_axis()

            >>> print slab_ocean_axis
            Axis of type depth with 1 points.

            >>> slab_ocean_axis.axis_type
            'depth'

            >>> slab_ocean_axis.bounds
            array([  0.,  10.])

            >>> slab_ocean_axis.units
            'meters'