Thanks Tony. That solved a huge part of what I was trying to do.
   
  I was going through the trellis documentation (Bell labs) too. Is there any other documentation/manual that you would recommend.
   
  many thanks!
   
  Tim

Tony <ahirst@qwest.net> wrote:
  On Mon, 2006-05-22 at 18:36 -0700, Tim Smith wrote:
> Hi all,
> 
> I was trying to plot a graph using the following data:
> 
> method percent accuracy group
> A1 4 0.8529 cns
> A1 10 0.8412 cns
> A1 15 0.8235 cns
> A2 4 0.9353 cns
> A2 10 0.9412 cns
> A2 15 0.9471 cns
> A1 4 0.8323 col
> A1 10 0.8452 col
> A1 15 0.8484 col
> A2 4 0.8839 col
> A2 10 0.8677 col
> A2 15 0.8678 col
> 
> ################# 
> The code I'm using to generate the graphs is:
> 
> ### code : 
> 
> xyplot(accuracy ~ percent|group,data = k, groups = method, allow.multiple = TRUE, scales = "same",type="o", 
> xlab = "% of genes", ylab = "Accuracy", main = " Accuracy ", aspect = 2/3,
> panel = function(...) { 
> panel.superpose(...) 
> } 
> )
> 
> 
> ####################
> 
> I have tried to use the 'get' and 'set' functions of 'par()', but can't figured it out. I have two questions:
> 
> i) How can I set it so that the line plotted for A1 in all the plots is 'solid', and the one for A2 is 'dotted' for both the groups (cns and col)
> 
> ii) How can I set the abline feature to show a horizontal line at different points on the y-axis for each of the two graphs?
> 
> Any help would be highly appreciated.
> 
> many thanks.
> 
> 
> 
> 
> 
> 
> 
> 
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Does this get you closer?

xyplot(accuracy ~ percent|group,data = k, groups = method,
allow.multiple = TRUE, scales = "same",type="o",
par.settings=list(superpose.line = list(lty=1:2)), # added
xlab = "% of genes", ylab = "Accuracy", main = " Accuracy ", aspect =
2/3,
panel = function(...) { 
panel.superpose(...) 
} 
)
-- 
Tony 



		
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