[R] lattice and display

[Nolwenn Le Meur]

Hi,

I have just started using lattice and it looks great. But I already have 3
questions about xyplot display.
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1.I would like to create two differeny xyplot with different color to
identify my different groups but I have trouble applying colors.
Here are the scripts

 xyplot(resultdata$Y~resultdata$X , data=resultdata,groups=resultdata$Block,
 panel="panel.xyplot",
 panel.groups="panel.xyplot",
 xlab="X",ylab="Y",pch="*",
 col.groups=trellis.par.get("superpose.symbol")$col[1:6],cex=2,
 key=list(space="right",
 points=list(pch="*",
	     col=trellis.par.get("superpose.symbol")$col[1:6]),
 text=list(paste("Block",1:6)))
 )

xyplot(resultdata$Y~resultdata$X |resultdata$Block, data=resultdata,
 xlab="X",ylab="Y",
col.groups=trellis.par.get("superpose.symbol")$col[1:6],cex=2,
 key=list(space="right",
 points=list(pch=trellis.par.get("superpose.symbol")$pch[1:6],
	     col=trellis.par.get("superpose.symbol")$col[1:6]),
 text=list(paste("Block",1:6)))
 )
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2.For the latest formula I would also like to change the resultdata$Block
label by the corresponding "Block x".
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3.I finally would like to save my plot as "jpg" files under Linux but I
loose the color.


Thanks,

Nolwenn


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Nolwenn Le Meur
INSERM U533
Faculté de médecine
1, rue Gaston Veil
44035 Nantes Cedex 1
France

Tel: (+33)-2-40-41-29-86 (office)
     (+33)-2-40-41-28-44 (secretary)
Fax: (+33)-2-40-41-29-50
mail: nolwenn.lemeur at nantes.inserm.fr
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