I too am unsure what is required, perhaps
xyplot(y~x,data,col=c(3,4),groups=id,pch=c(12,13), type= c("p","r"))
a toy dataset would have helped
Perhaps a perusal of
http://lmdvr.r-forge.r-project.org/figures/figures.html
is required
Regards
Duncan Mackay
Department of Agronomy and Soil Scienc
Dear users,
I am new to R and have couple of problems with xyplot.
A) I am trying to use the xyplot to plot mean concentration vs time across 5
dose groups.
When i use the following script
xyplot(mean~time,groups=dose,type="b",panel=panel.superpose). R generates
the plot, but i have no control o
For the first part, use the col and pch arguments:
id<-rep(c(0,2),each=50)
e<-rnorm(100)
x<-rnorm(100)
y<-id+x+e
xyplot(y~x,groups=id,col=c(3,4),pch=c(12,13))
For the second part, I do not know what exactly mean by superimpose the mean
level? Should the mean for each group be displayed as a horiz
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