HI,
May be this helps:
dat1<- read.table(text="
ID Var1 Var2 Group
A1 1 1 BB
A2 1 2 AA
B1 2 1 CC
B2 1 3 DD
C1 1 2 EE
",sep="",header=TRUE)
library(reshape2)
dat2<-melt(dat1,id.var=c("ID","Group"))
library(ggplot2)
ggplot(dat2,aes(x=ID,y=value,group=Group,colour=Group))+geom_point()
A.K.
----- Original Message -----
From: Ye Lin <ye...@lbl.gov>
To: R help <r-help@r-project.org>
Cc:
Sent: Friday, May 3, 2013 4:37 PM
Subject: [R] color by group in ggplot
Hey,
I have a dataset like this:
ID Var1 Var2 Group
A1 1 1 BB
A2 1 2 AA
B1 2 1 CC
B2 1 3 DD
C1 1 2 EE
I would like to plot the points of Var1 and Var2, use "ID" as X-axis, but
color the points by "Group". I can only manage to color the points by "ID"
after transform the dataset to "tall" using "reshape" package.
Thanks for your help!
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