Hi Naomi,
Take a look at the lattice package for plotting. An example using your data:
library(lattice)
library(reshape)
a<-c(1,2,3,4,5,6)
b<-c(3,5,4,6,1,1)
c<-c(1,1,1,1,1,1)
bla = data.frame(a,b,c)
# melt is from reshape
bla2 = melt(bla, id.vars = "a")
xyplot(value~a | variable, bla2,
layout = c(1,2),
strip = strip.custom(factor.levels = c("a vs b", "a vs c")))
?melt
?xyplot
xyplot takes care that the axis are equal, no need to set it yourself.
Lattice is a bit harder to get to know than the 'normal' plotting system
in R, but is great for multivariate data.
cheers and good luck,
Paul
Duijvesteijn, Naomi wrote:
Dear R-people
I have a question concerning plotting graphs.
Here an example dataset
a<-c(1,2,3,4,5,6)
b<-c(3,5,4,6,1,1)
c<-c(1,1,1,1,1,1)
d<-as.data.frame(cbind(a,b,c))
plot.new()
plot(d$a, d$b, col="red")
par(new=TRUE)
plot(d$a,d$c, col="red", pch="|")
What I would want is to plot de second plot under the first plot. So not in the
the first plot. There is a way to divide your graph in 2 or 3 parts and use the
same x-axis but I do not seem to get it right. Could somebody help me out?
Thanks in advance!
Regards,
Naomi
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