[R] Need help using lattice

[Parkhurst, David F.]

I have a dataframe comprising a vector of E. coli concentrations, a vector of months when the samples were taken, and a vector of sampled sites.  I�d like to produce a lattice with sites along the horizontal axis, and months on the vertical.  Each site-month box would then contain concentrations ranging along its x axis.



I think this would use dotchart (or possibly stripchart) in the lattice.  I�ve been reading the lattice and xyplot documents and I�m overwhelmed.  I�d appreciate help in how to write the call.



David


	[[alternative HTML version deleted]]