Harsh wrote:
Hi list,
I would like to use ggplot2 in creating a line plot with 4 lines (groups), 2
of which I want in colour and the remaining two as dotted lines.
### R code ###
library(ggplot2)
### create data ####
vals <- rnorm(400)
div<- c(rep("A",100),rep("B",100),rep("C",100),rep("D",100))
n<- rep(1:100,4)
df<- data.frame(div= as.factor(div),vals=vals,n=n)
### ggplot function ####
qplot(x=n,y=vals, colour = div ,geom = "line",data=df)
What I would like to see is a line plot where I can have lines for groups A,
and B in colour and lines for C and D in dotted and dashed respectively.
ggp <- ggplot(aes(x=n,y=vals, colour=div, linetype=div), data=df) +
geom_line()
ggp + scale_colour_manual(values = c("red","blue","black","black")) +
scale_linetype_manual(values = c(1,1,3,2))
Also, I would like to know how I can draw two lines (groups C and D) which
are both dotted.
For graphic specifications see Hadley' instructions:
http://had.co.nz/ggplot2/book/specifications.pdf
Ciao,
domenico
Thanks
Regards
Harsh Singhal
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