with ggplot2,
d <- melt(df2,id="year")
qplot(year,value,data=d,colour=variable,geom=c("line","point")) +
geom_text(data= subset(d, variable == "cars"), aes(label=value))
with lattice, my best guess would be to use grid.text in a custom
panel function.
Hope this helps,
baptiste
On 8 Apr 2009, at 19:40, taz9 wrote:
Hi All,
I have a very simple graph:
cars <- c(1, 3, 6, 4, 9)
trucks <- c(2, 5, 4, 5, 12)
year <- c(2004, 2005, 2006, 2007, 2008)
df2<-data.frame(cars,trucks,year)
xyplot(cars+trucks~year, data=df2, type="o")
I need to show the values of "cars" on the graph. How can I do this?
Thanks.
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_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
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