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
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 Science
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
3 matches
Mail list logo
