[R] Lattice histogram with vertical lines

[David Scott]

I would like to add some vertical lines to a lattice plot of histograms. 
What I am after is a lattice version of abline(v = 1234). The lattice 
histogram plot is just:

histogram( ~ LTSE | approach, data = arrivals)

Can anyone point me in the right direction for this?

David Scott

_________________________________________________________________
David Scott	Department of Statistics
 		The University of Auckland, PB 92019
 		Auckland 1142,    NEW ZEALAND
Phone: +64 9 373 7599 ext 85055		Fax: +64 9 373 7018
Email:	d.scott at auckland.ac.nz

Graduate Officer, Department of Statistics
Director of Consulting, Department of Statistics