Re: [R] Boxplot philosophy {was "Boxplot in R"}

From: Renaud Lancelot <renaud.lancelot_at_cirad.fr>
Date: Tue 12 Jul 2005 - 19:57:04 EST

Martin Maechler a écrit :

>>>>>>"Spencer" == Spencer Graves <spencer.graves@pdf.com>
>>>>>>    on Mon, 11 Jul 2005 19:08:39 -0700 writes:

>
>
> Spencer> I'll bite: How does one detect bimodalidty from a boxplot?
>
> One does not,
> and that (whole area) was the main reason I mentioned "violin
> plots" which do show features such as bimodality:
>
> There's a simple violin plot in the (recommended and hence
> always available) package "lattice"
>
> library(lattice)
> example(panel.vioplot)

Or rather

example(panel.violin)

Best,

Renaud

>
> but for the sake of bimodality {and the version of violin plot
> that was in the 1998 Am.Stat. paper}
>
> install.packages("vioplot") # if needed
> example(vioplot)
>
> Both of these examples use the basic boxplot but *add* to it, so
> you can, e.g., clearly discern bimodality.
>
> Martin Maechler
>
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-- 
Dr Renaud Lancelot, vétérinaire
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Received on Tue Jul 12 20:04:49 2005

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