Hi Toby,
My versions are:
R: 2.4.0
Python: 2.5.1
Rpy: 1.0-RC2
Sorry I wasn't very clear earlier... I imported r into ipython to have a
play with it and see what happens. I tried getattr(r,' generic.scatter.plot')
which didn't work - I'm under the impression that getattr won't work with
dotted notation like that if you're doing normal object lookup, am I right
in saying that r does it differently to python? So i tried getattr(r,
'generic') and that didn't work either. The error I get is:
> Error in get(x, envir, mode, inherits) : variable "generic.time.series"
was not found
I tried it with underscores too and I got exactly the same message...
In fact just having looked through the source and having a play with rpy it
seems that there are bugs all over the place:
>>> from rpy import r
RHOME= /usr/lib/R
RVERSION= 2.4.0
RVER= 2040
RUSER= /home/ben
Loading Rpy version 2040 .. Done.
Creating the R object 'r' .. Done
>>> r
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.5/site-packages/rpy.py", line 307, in __repr__
Rver = self.__getitem__('R_version_string')
File "/usr/lib/python2.5/site-packages/rpy.py", line 290, in __getitem__
obj = self.__dict__[name] = self.__dict__.get(name, self.get(name))
rpy.RException: Error in get(x, envir, mode, inherits) : variable
"R_version_string" was not found
It looks like the logic in R.__getattr__ isn't working properly! I'll
reinstall it at some point and see how it works :-)
Cheers
Ben
On 12/07/07, Toby Dylan Hocking <[EMAIL PROTECTED]> wrote:
>
>
> Hi Ben,
>
> I'm excited to hear that you got a copy of django.contrib.dataplot and you
> are trying it out. I will try to help you debug the problem, but the
> full traceback may be more useful. Can you send it?
>
> The purpose of the get_r_fun method is to look at the current R
> environment and check if the desired R function has been source'ed yet.
> This is one of the first steps before passing the data before R.
>
> I take the "r has no attribute generic" to refer to one of the generic
> plotting functions named in one of the RPlot subclasses -- you must be
> dealing with Scatter, TimeSeries, or NormalQQPlot, right? Are you sure it
> doesn't say something like "r has no attribute generic.scatter.plot"? You
> might try changing the dots . to underscores _ in the
> r_fun_name='generic.scatter.plot' line in the definition of the
> ScatterPlot subclass.
>
> Maybe your version of RPy isn't translating python names into R names the
> same way as mine is? I'm using RPy 0.4.6-3ubuntu2 Python 2.4.2-0ubuntu3
> and R 2.2.1-2 on ubuntu dapper. What are your versions?
>
> Sincerely,
> Toby Dylan Hocking
> http://www.ocf.berkeley.edu/~tdhock<http://www.ocf.berkeley.edu/%7Etdhock>
>
> On Wed, 11 Jul 2007, Ben Ford wrote:
>
> > Hi Toby
> > I've grabbed a copy of your code but the RPlot.get_r_fun method isn't
> > working for me... Could you perhaps explain how it does the mapping to
> the R
> > function? What my testing is saying to me is that r (the one that's
> imported
> > at the top of __init__.py) has no attribute generic... I've had a very
> brief
> > look at rpy before, but I'm not exactly familiar with it's inner
> > workings....
> > Great work, I've been meaning to have a crack at something like this for
> > ages!!
> > Ben
> >
> > On 11/07/07, Toby Dylan Hocking <[EMAIL PROTECTED]> wrote:
> >>
> >>
> >> Hi there,
> >>
> >> If you still need help with making data-driven plots, why don't you
> check
> >> out my new Django package --- I'd like some testers and comments.
> >> Basically it is an interface to the R programming language (for
> statistics
> >> and graphics) through the RPy package. You can download my latest
> release:
> >>
> >> http://www.ocf.berkeley.edu/~tdhock/dataplot-0.2.tgz<http://www.ocf.berkeley.edu/%7Etdhock/dataplot-0.2.tgz>
> >>
> >> I'm a statistician who has been using this system for some time at my
> >> work, but I finally am getting around to generalizing it and packaging
> it
> >> for general use with the Django framework.
> >>
> >> The installation instructions are in INSTALL.txt in the archive.
> >> Documentation is mostly present in docstrings at the moment -- I'm
> working
> >> on more tutorials, but the .txt files and the example app should be
> enough
> >> to get you started.
> >>
> >> Sincerely,
> >> Toby Dylan Hocking
> >> http://www.ocf.berkeley.edu/~tdhock<http://www.ocf.berkeley.edu/%7Etdhock>
> >>
> >>
> >>>
> >>
> >
> >
> > --
> > Regards,
> > Ben Ford
> > [EMAIL PROTECTED]
> > +628111880346
> >
> > >
> >
>
> >
>
--
Regards,
Ben Ford
[EMAIL PROTECTED]
+628111880346
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