line/bar through median in lattice's

Dieter Menne <dieter.menne <at> menne-biomed.de> writes:

Check the code for something like points (which is the default).
Find a mysterious '|' and pch

Dieter

Yes, that was it!  Thanks Dieter!  The mysterious code is right near the bottom
of the function.  Too bad this is not documented, at least not in ?panel.bwplot.