[R] Help in Lattice!

[Haoda Fu]

Hi -

How can I add different notes in different panels?

My data looks like

     ID Dose  Visit  Value
1    1    0   0.5 -6.5802e-02
2    1    0   1.0  2.4085e-01
3    1    0   1.5 -2.2907e-01
4    1    0   2.0  2.4074e-01
...   ...  ...  ...  ...
270 45   30   3.0 -8.1316e-01
271 46   30   0.5 -2.0786e-01
272 46   30   1.0 -2.9336e-01
273 46   30   1.5 -5.5657e-01
274 46   30   2.0 -2.1659e-01

I use 
xyplot(Value ~ Visit | factor(ID), data = dataM, typ = 'o',layout = c(3,3),as.table=TRUE);

to plot each patient longitudinal observations.
How can I add dose information to each panel? e.g., adding "Dose = 30"

Best,
Haoda