
I am using this code but the output is not totally black and white. The 
dots and lines are green and the panel labels are light green or tan. I 
need to adapt this code to get just black on a wight background.

trellis.device(device=jpeg, file="C:/Documents and 
Settings/tables/figure2_March27b.jpg",theme=col.whitebg)

print( xyplot(AWGT ~ log(pcb_80) | malex*romanix, data=pcb_graph3a,

       auto.key = list(lines = TRUE, points = TRUE), ylab="Birth Weight", xlab="log PCB",

       type=c("p", "smooth"), span=.8) )

dev.off()
thanks

-- 
Dean Sonneborn, MS
Programmer Analyst
Department of Public Health Sciences
University of California, Davis
(530) 754-9516


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