Hi,
You could do this very easily using ggplot2,
#install.packages("ggplot2", dep=TRUE)
library(ggplot2)
c <- ggplot(mtcars, aes(y=wt, x=mpg)) + facet_grid(. ~ cyl)
c + stat_smooth(method=lm) + geom_point()
See more examples on Hadley's website: http://had.co.nz/ggplot2/
Hope this helps,
baptiste
On 26 Apr 2009, at 10:29, [email protected] wrote:
Dear all
I'm realy new to R, so I hope you can help me, as I didn't find any
solution in the common books.
Since some days I'm trying to create the following plot: A
scatterplott showning two different groups side-by-side with
according regression lines. Both datasets only have the same five
factors, so the scatters will form a kind of column at each factor.
When I use "scatterplot" (package "car"), then I can plot two groups
in the same graph by using the command "groups", but the scatters of
both groups are then plotted on top of eachother using different
symbols and they can hardly be distingushed. How can I plot them
side by side, so that the groups do not overlap? And how can I give
different colours to the groups and the according regression line?
(This is, what I got so far: http://img7.imageshack.us/img7/227/almostgood.jpg)
I tried to use the commands used in "boxplot", to solve this
problem. In this commant, it's possible to plot different datasets
side-by-side by defining the position of the bars (example: at = 1:5
- 0.4). A second boxplot-chart can then be added by adding the
command "add=TRUE" to the line and defining another position. Both
commands don't function within the scatterplot-command.
By the way: It's realy necessary to plott the data as scatters and
not as boxplots. With the command "plot", I can not plot the data by
groups (I tried it with the commands "subset" and "groups", but
obviously, there is no way to do so).
I'm greatful for every (simple) solution
Thanks in advance
Karin Schneeberger
MSc-student
University of Berne
Switzerland
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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
______________________________________________
[email protected] mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
