[R] ggplot2: labels and breaks order does not match and I can't use scale_fill_identity

[Xavier Chardon]

The solution to this problem is in the mail below. I initially forgot to 
send a copy to the mailing list, and I'm doing it now for the record, in 
case someone bumps into this problem.

Xavier

-------- Message original --------
Sujet: 	Re: [R] ggplot2: labels and breaks order does not match and I 
can't use scale_fill_identity
Date: 	Tue, 29 Apr 2008 17:29:13 +0200
De: 	Xavier Chardon <xavier.chardon at rennes.inra.fr>
Répondre à :: 	xavier.chardon at rennes.inra.fr
Pour :: 	Mikhail Spivakov <ensdev.box at googlemail.com>
Références: 	<84ebf4fb0804290753k3ae4aacbm3415a9cc5bec60d1 at mail.gmail.com>



Hi,

I had a similar problem. I don't know if the solution will apply to your 
case but you might want to give it a try. It consists in including the 
following line before the plot is created:

res$f1 <- factor(res$f1, levels = unique(res$f1) )

with f1 sorted in the order you want it to appear.


Xavier


Mikhail Spivakov a écrit :
> Hi,
>
> I'm plotting a bar chart like this:
>
> ggplot() +
> geom_bar(data=res,aes(fill=f1,x=f2,y=y),stat="identity",position="dodge")
>
> f1 contains quite a few levels and the plot is really quite difficult to
> read when the order of bars on the graph and on the legend does not match.
>
> This problem has been discussed recently here:
> http://www.nabble.com/ggplot2---legend-for-fill-coulours-td16235166.html
> and the solution was to use scale_fill_identity to manually define the order
> of both the breaks and the labels.
> This is however unsuitable for me (at least in the unmodified form), as this
> is part of a script that does not know in advance how many levels there arae
> in f1.
>
> Is there a way round this problem?
>
> Many thanks
> Mikhail Spivakov
>
> Mikhail Spivakov PhD
> Postdoctoral Fellow
> EMBL/EBI
> Germany/UK
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>   

-- 
Xavier Chardon
Thésard Institut de l'élevage / INRA
Projet ACTA "modélisation environnementale des systèmes bovins et porcins"

xavier.chardon at inst-elevage.asso.fr
xavier.chardon at rennes.inra.fr
02 23 48 50 91




-- 
Xavier Chardon
Thésard Institut de l'élevage / INRA
Projet ACTA "modélisation environnementale des systèmes bovins et porcins"

xavier.chardon at inst-elevage.asso.fr
xavier.chardon at rennes.inra.fr
02 23 48 50 91