Try
xyplot(abund ~ bif | experiment, data=graphs, groups=stage,
type = c("p", "r"))
See the help page for panel.xyplot().
Best regards
Frede Aakmann Tøgersen
Scientist
UNIVERSITY OF AARHUS
Faculty of Agricultural Sciences
Dept. of Genetics and Biotechnology
Blichers Allé 20, P.O. BOX 50
DK-8830 Tjele
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> -----Oprindelig meddelelse-----
> Fra: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] På vegne af yvo
> Sendt: 11. marts 2008 13:18
> Til: r-help@r-project.org
> Emne: [R] Trellis plots with two regression lines
>
>
> http://www.nabble.com/file/p15976467/table.pdf table.pdf
>
> I want to create 8 trellis (|experiment) scatterplots with
> regression lines for prey and pred in each plot with
> different colouring. So far i am creating trellis plots- but
> the separation in these groups is never possible.
>
> library(lattice)
> graphs<- read.table("table.txt", header=T)
> attach(graphs)
> names(graphs)
> str(graphs)
> xyplot(abund ~ bif | experiment, data=graphs, groups=stage,
> panel=function(x,y){panel.xyplot(x,y, pch=16)
> panel.abline(lm(y~x))})
>
> Thanks a lot for your help!!
> Yvonne Fabian
> University of Fribourg
>
>
> --
> View this message in context:
> http://www.nabble.com/Trellis-plots-with-two-regression-lines-
> tp15976467p15976467.html
> Sent from the R help mailing list archive at Nabble.com.
>
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>
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