Message-ID: <f8e6ff050809090601r5d2d41afl9406c1e3b4b82602@mail.gmail.com>
Date: 2008-09-09T13:01:49Z
From: Hadley Wickham
Subject: plotting group means
In-Reply-To: <2E9C414912813E4EB981326983E0A10405698453@inboexch.inbo.be>
On Tue, Sep 9, 2008 at 6:56 AM, ONKELINX, Thierry
<Thierry.ONKELINX at inbo.be> wrote:
> Dear Erich,
>
> Have a look at ggplot2
>
> library(ggplot2)
> dataset <- expand.grid(x = 1:20, y = factor(LETTERS[1:4]), value = 1:10)
> dataset$value <- rnorm(nrow(dataset), sd = 0.5) + as.numeric(dataset$y)
Or with stat_summary:
qplot(x, value, data=dataset, colour=y, group = y) +
stat_summary(geom="line", fun="mean",size=2)
--
http://had.co.nz/