Lattice: how to get default ylim?

Deepayan Sarkar wrote:

     v <- current.viewport()        ## requires R 2.1.0 (I believe)

No, I think it's been there for a while. However, AFAIR the fact that
viewports have components xscale and yscale that can be accessed like
this is undocumented and may change if the implementation changes (which
is a real possibility).

Ideally, there should be exported interfaces to access this information,
either in grid or lattice. One of the reasons there isn't is that you
rarely

Yes, I agree that such an interface is quite desirable.