On 4/16/2012 7:31 AM, Brian Smith wrote:
Hi,I was trying to replicate one of the graphs given on the ggplot2 website. I have given a sample code below. I would like to combine the legends, since each color is uniquely mapped to a shape. ### library(ggplot2) leaves<- letters[1:8] mat<- matrix(sample(1:1000,32),nrow=16,ncol=2) colnames(mat)<- paste('t',1:2,sep='') df<- as.data.frame(cbind(mat,leaves)) vals<- 1:length(leaves) names(vals)<- leaves p<- ggplot(df,aes(t1,t2)) p + aes(shape = factor(leaves)) + geom_point(aes(colour = factor(leaves))) + scale_shape_manual("",values=vals) #### Which parameter do I need to change?
add scale_colour_discrete("") to your call. In order for scales to be combined, the breaks, labels, and title must all be the same. You had breaks and labels the same, but not the title. Alternatively, change the scale_shape_manual call to scale_shape_manual(values=vals).
thanks!
-- Brian S. Diggs, PhD Senior Research Associate, Department of Surgery Oregon Health & Science University ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
