[R] ggplot2: geom_errorbarh()

[Benoit Boulinguiez]

when I use size, it sets the global size of the whiskers (I'd rather say the
thickness of the line) but for sure it does not set the width of the
whisker.

Try to use the option 'width' with errorbar() not errorbarh(), you'll see
that it works perfectly, it sets the width of the whisker. It just doesn't
work with errorbarh(), I guess... unfortunately...   


Regards/Cordialement


Benoit Boulinguiez 


-----Message d'origine-----
De : hadley wickham [mailto:h.wickham at gmail.com] 
Envoyé : mercredi 15 juillet 2009 14:52
À : Benoit Boulinguiez
Cc : r-help at r-project.org
Objet : Re: [R] ggplot2: geom_errorbarh()

In ggplot2, you'll want to use size.
Hadley

On Wed, Jul 15, 2009 at 12:36 PM, Benoit
Boulinguiez<benoit.boulinguiez at ensc-rennes.fr> wrote:
> Hi,
>
> I expect 'width' to set the width of the horizontal line of the 
> whisker, as it does with errobar()
>
> Regards/Cordialement
>
>
> Benoit Boulinguiez
>
>
> -----Message d'origine-----
> De : hadley wickham [mailto:h.wickham at gmail.com] Envoyé : dimanche 12 
> juillet 2009 11:04 À : Benoit Boulinguiez Cc : r-help at r-project.org 
> Objet : Re: [R] ggplot2: geom_errorbarh()
>
> Hi Benoit,
>
> What do you expect width to do?  You are already setting the left and 
> right extents with xmin and xmax.
>
> Hadley
>
> On Thu, Jul 9, 2009 at 10:37 AM, Benoit 
> Boulinguiez<benoit.boulinguiez at ensc-rennes.fr> wrote:
>> Hi all,
>>
>> quick question: is the optional command "width" effective in the
>> geom_errorbarh() layer of ggplot?
>> Cause I can't get it works on this graph 
>> http://www.4shared.com/file/116919103/93488d88/iso_2PrsH.html
>>
>>
>> pdf(file = "iso_2PrsH.pdf", width = 7, height = 7) 
>> NC60.iso.graph<-ggplot(
>>  NC60.DATA
>>  ,aes(Ce,Qe)) +
>>  geom_point(col=MaCouleur1, size=4) +
>>
>>  geom_errorbar(
>>  aes(ymax = NC60.DATA$Qe+NC60.DATA$sdQe
>>   ,ymin=NC60.DATA$Qe-NC60.DATA$sdQe)
>>   ,colour=alpha("black",0.4)
>>   ,width=1) +
>>
>>  geom_errorbarh(
>>  aes(xmax = NC60.DATA$Ce+NC60.DATA$sdCe
>>   ,xmin=NC60.DATA$Ce-NC60.DATA$sdCe)
>>   ,colour=alpha("black",0.4)
>>   ,width=1) +
>>
>>  geom_line(data=NC60.Res4.curve
>>  ,aes(x,y)
>>  ,size=1
>>  ,colour=alpha("black",0.5)) +
>>  xlab(C[e]~(mmol/m^3)) +
>>  ylab(q[e]~(mmol/m^3))
>>
>> print(NC60.iso.graph)
>> dev.off()
>>
>> Regards/Cordialement
>>
>> -------------
>> Benoit Boulinguiez
>> Ph.D student
>> Ecole de Chimie de Rennes (ENSCR) Bureau 1.20 Equipe CIP UMR CNRS 
>> 6226 "Sciences Chimiques de Rennes"
>> Avenue du Général Leclerc
>> CS 50837
>> 35708 Rennes CEDEX 7
>> Tel 33 (0)2 23 23 80 83
>> Fax 33 (0)2 23 23 81 20
>>  <http://www.ensc-rennes.fr/> http://www.ensc-rennes.fr/
>>
>>
>>
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>>
>>
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>
>
>
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