Faisal Moledina wrote:
> On Mon, Nov 30, 2009 at 4:26 PM, Laurent Gautier <lgaut...@gmail.com> wrote:
>>> Next problem: Because I included the option y='..density..' in my
>>> histogram aes, my plot now has ..density.. as its x label. This
>>> doesn't happen in R. I thought I could rectify this by adding the line
>>> pp=pp+ggplot2.opts(xlab="z"), but that doesn't seem to work. If I
>>> remove the option y='..density..' from my histogram aes, I get z as my
>>> x label, but I still cannot change it using the options (e.g.
>>> pp=pp+ggplot2.opts(xlab="z position") has no effect). Any thoughts?
>> This is a gpplot2 question, not an rpy2 one, I think (which I can't be all
>> answering in good conscience when there is both documentation on the ggplot2
>> website, as well as a recent book available).
>>
>> From memory, the call should be pp = pp + ggplot2.scale_x_continous("z
>> position")
>>
>
> Ack. You're right! I'm too used to qplot() and its options within R,
> and don't usually build my plots one layer at a time. Cool, this works
> well, then. Thanks again. Last question for this thread: there doesn't
> seem to be a ggplot2.theme_set function.
This is an involuntary omission.
The rpy2.robjects.lib.ggplot2 module started out as a way to show how to
map Python classes onto R classes manually (not matter what flavour of R
OOP is used).
(I have updated the documentation recently about that
http://rpy.sourceforge.net/rpy2/doc-dev/html/robjects.html#working-with-r-s-oops)
Since you are already using rpy2-2.1dev (thanks for that, btw), you can
work around the missing bits by using importr().
Example:
from rpy2.robjects.packages import importr
ggplot2_pack = importr("ggplot2")
ggplot2_pack.theme_set(ggplot2_pack.theme_bw())
(more about importr() at
http://rpy.sourceforge.net/rpy2/doc-dev/html/robjects.html#module-rpy2.robjects.packages)
L.
> Without having to set every
> theme element through opts(), is there a way to set the overall
> ggplot2 theme?
>
>> L.
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