R help - Sep 2009 - ggplot2 box plot notches

Dear List,


I just googled to find out if notched box plots are possible with
ggplot2, but couldn't find a answer to it.

boxplot() has the option: notch = TRUE, e.g.: boxplot(mpg$hwy, notch=TRUE)

My example code (taken from the net) is:

require(ggplot2)
qplot(class, hwy, fill=factor(year), data=mpg, geom="boxplot",
position="dodge")+theme_bw()


Thank you for you help!

Steve

Dear Steve,

I don't think that ggplot2 has that option. Hadley, please correct me if
I'm wrong.

HTH,

Thierry 


------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to
say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of
data.
~ John Tukey

-----Oorspronkelijk bericht-----
Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
Namens stvienna wiener
Verzonden: dinsdag 29 september 2009 15:43
Aan: r-help at r-project.org
Onderwerp: [R] ggplot2 box plot notches

Dear List,


I just googled to find out if notched box plots are possible with
ggplot2, but couldn't find a answer to it.

boxplot() has the option: notch = TRUE, e.g.: boxplot(mpg$hwy,
notch=TRUE)

My example code (taken from the net) is:

require(ggplot2)
qplot(class, hwy, fill=factor(year), data=mpg, geom="boxplot",
position="dodge")+theme_bw()


Thank you for you help!

Steve

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Dear Thierry,


Thank you very much for the fast reply.


Is there a way not to plot outliers in the ggplot2 boxplots? In a way
that the scale of the y-axis is rendered as if there was no outlier?
(not just the the ouliers removed with the same scale of the
y-axsis...)

[ example for a boxplot: qplot(mpg, wt, geom="boxplot", data=mtcars) ]

My only solution would be to remove outliers before doing the boxplot....


Thanks again,
Stephan




PS: I think there could be a typo in the help of qplot, at least in
version 2.9.1

I think "data=mtcars" is missing....

# Use different geoms
qplot(mpg, wt, geom="path")
qplot(factor(cyl), wt, geom=c("boxplot", "jitter"))