Am I correct in thinking that valueRange can only be set at the time of
graph instantiation? I would like to be able to change it dynamically
based on user input (beyond the capability provided by y-axis zooming
which, for example, does not allow zooming out beyond the initial state).
I tried this using valueRange on an existing graph, and it didn't appear
to have any effect.
I also wondered whether there is a way of suppressing the automatic
rescaling that occurs during panning. It is a nice feature for many
applications but in others I would like to be able to keep the scaling