[R] adding year information to a scatter plot

[John Kane]

I think that one of the packages, perhaps Hmisc or plotrix does this but you can also do it just using text()

Example

plot(b~a,data=df, xlim=c(min(df$a)-5,max(df$a)+5), ylim= c(min(df$b)-5,max(df$b)+5))
text( df$a+1,df$b, labels=df$year)

Alternatively you can do this in ggplot

library(ggplot)
p <- ggplot(df, aes(x=a, y=b, label=year)) 
 p + geom_text() 


--- On Sun, 5/2/10, Ozan Bakis <obakis at gsu-giam.net> wrote:

> From: Ozan Bakis <obakis at gsu-giam.net>
> Subject: [R] adding year information to a scatter plot
> To: r-help at r-project.org
> Received: Sunday, May 2, 2010, 3:25 PM
> Hi R users,
> 
> I would like to add year information to each point in a
> scatter plot. The
> following
> example shows what i mean:
> 
> df=data.frame(year=c(2001,2002,2003),a=c(8,9,7),b=c(100,90,95))
> df
> plot(b~a,data=df)
> 
> Now, I would like to see which point belongs to 2001, 2002
> and 2003 in the
> above
> graphic.
> 
> Thank you very much,
> ozan
> 
>     [[alternative HTML version deleted]]
> 
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