R help - Jan 2008 - using facet_grid() from ggplot2 with additional text in labels

Hi

I am using ggplot2 at the moment and I must say it is definitely better 
then ggplot - good work.

My problem is that I am using facet_grid() in the following way:

 > p <- ggplot(ssq, aes(x=year, y=-log(ssq)))
 > p + geom_point() + facet_grid(me*gi~cs*rz)

and it works nicely, except that I would like to have, in naddition to 
the values of me, gi, cs and rz the name of the variable. I.e: if gi is 
1, 2 and 3 I would like to have "gi = 1:", "gi = 2" and
"gi = 3" as
labels of the p[anels. I did it with ggplot, but I don't remember and I 
have lost the code ...

Just a small comment on the package: as I am using emacs with ess, I 
have to press "_" twice to get the underscore in the commands (as the 
first one is replaced with "->" and then reverted to "_")
- would it be
possible to change these in the next release with "." (but still
provide
an alias with "_")?

Thanks a lot

Rainer

> I am using ggplot2 at the moment and I must say it is definitely better
> then ggplot - good work.
>
> My problem is that I am using facet_grid() in the following way:
>
>  > p <- ggplot(ssq, aes(x=year, y=-log(ssq)))
>  > p + geom_point() + facet_grid(me*gi~cs*rz)
>
> and it works nicely, except that I would like to have, in naddition to
> the values of me, gi, cs and rz the name of the variable. I.e: if gi is
> 1, 2 and 3 I would like to have "gi = 1:", "gi = 2" and
"gi = 3" as
> labels of the p[anels. I did it with ggplot, but I don't remember and I
> have lost the code ...
ggopt(strip.text = function(variable, value) paste(variable, value, sep="=
"))
> Just a small comment on the package: as I am using emacs with ess, I
> have to press "_" twice to get the underscore in the commands (as
the
> first one is replaced with "->" and then reverted to
"_") - would it be
> possible to change these in the next release with "." (but still
provide
> an alias with "_")?
I know it's a pain but I think emacs users need to change their ways
(and default settings) because as time goes by I think you'll see
increasing numbers of packages using _ instead of . to prevent
conflicts with S3.  It would be nice if R had a standard convention
for separating words in functions.

Hadley


-- 
http://had.co.nz/

Dear Rainer,

I think you'll have to recode the labels of the levels to get the output
that you want.

levels(ssq$gi) <- c("gi = 1", "gi = 2", "gi =
3")

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 op inbo.be 
www.inbo.be 

Do not put your faith in what statistics say until you have carefully
considered what they do not say.  ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainties, a surgery of suppositions. ~M.J.Moroney

-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org]
Namens Rainer M Krug
Verzonden: zaterdag 26 januari 2008 14:15
Aan: r-help; hadley wickham
Onderwerp: [R] using facet_grid() from ggplot2 with additional text in
labels

Hi

I am using ggplot2 at the moment and I must say it is definitely better
then ggplot - good work.

My problem is that I am using facet_grid() in the following way:

 > p <- ggplot(ssq, aes(x=year, y=-log(ssq)))  > p + geom_point() +
facet_grid(me*gi~cs*rz)

and it works nicely, except that I would like to have, in naddition to
the values of me, gi, cs and rz the name of the variable. I.e: if gi is
1, 2 and 3 I would like to have "gi = 1:", "gi = 2" and
"gi = 3" as
labels of the p[anels. I did it with ggplot, but I don't remember and I
have lost the code ...

Just a small comment on the package: as I am using emacs with ess, I
have to press "_" twice to get the underscore in the commands (as the
first one is replaced with "->" and then reverted to "_")
- would it be
possible to change these in the next release with "." (but still
provide
an alias with "_")?

Thanks a lot

Rainer

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