es should correspond to a specific axis, e.g. a non-linear field axis).
</p>

<p>
The rescaled slices are then plotted with a separation determined by <code>step</code>, the relative step size multiplied by the maximum absolute value of the rescaled data to give the final spacing. Alternatively, a list of values at which to plot the slices can be provided (this is best used in combination with a scaling factor in <code>scale</code>). 
If <code>step</code> is not given, a value of 1.5 is assumed.
</p>

<p>
T