[R] ggplot2: changing axis labels in ggplot()

[James D Forester]

Hi all,

For various reasons, I need to use ggplot instead of qplot for a complex
figure. Everything is working fine, except I cannot figure out how to rename
the axis labels in ggplot. I have pasted a simple example below. Any ideas
on what I am doing wrong?

Thanks for your help.

James



library(ggplot2)
##create data
mydat<-data.frame("site"=sample(c(0,1),100,replace=T),"response"=rnorm(100,5,2))
mydat$predictor<-mydat$response*1.5+rnorm(100)

##qplot works fine
qp<-qplot(predictor,response,data=mydat,xlab="Predictor
Variable",ylab="Response Variable")

##However, trying this with ggplot, I cannot change the axis labels
p<-ggplot(data=mydat,aes(shape=factor(site),x=predictor,y=response))
p$xlabel="Predictor Variable"
p$ylabel="Response Variable"
p+geom_point()
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