Oddly on the original WXP box and running in IDLE, the R graphics
device appears but no plot is drawn and no error message is given.
Running from the CLI, the plot is generated w/o a hitch.
On an unrelated note, trying a standard install on my FC8 x86_64 box
fails with Rinternals.h, Rdefines.h, etc. not found. They do exist in
the path "include/R/"
HTH & TIA.
Vince Fulco
On Sun, Aug 17, 2008 at 3:49 AM, Laurent Gautier <[EMAIL PROTECTED]> wrote:
> 2008/8/17 Vince Fulco <[EMAIL PROTECTED]>:
>> x = robjects.r.rnorm(100)
>>
>> robjects.r('hist(%s, xlab="x", main="hist(x)")' %repr(x))
>>
>> Traceback (most recent call last):
>> File "<pyshell#10>", line 1, in <module>
>> robjects.r('hist(%s, xlab="x", main="hist(x)")' %repr(x))
>> File "C:\Python25\Lib\site-packages\rpy2\robjects\__init__.py", line
>> 421, in __call__
>> p = self.parse(text=string)
>> File "C:\Python25\Lib\site-packages\rpy2\robjects\__init__.py", line
>> 335, in __call__
>> res = super(RFunction, self).__call__(*new_args, **new_kwargs)
>> RRuntimeError: Error in function (file = "", n = NULL, text = NULL,
>> prompt = "?", srcfile = NULL, :
>> unexpected input in "hist(c(1.90855727703905, 1.05953538072277,
>> 1.81164302718342, -0.156598628840518,
>> "
>>
>> what isn't visible in the above error or the variable x when called is
>> that line terminators are displayed. Are these causing the error
>> similar to some pure python instances on WXP? Have not tried yet on
>> linux box.
>
> The example above seems to working on Linux.
>
> Something wrong might be happening during the call to __repr__() and,
> as you point it out, have something to do with line terminators.
>
> The code for object representation in robjects is:
> def repr_robject(o):
> s = r.deparse(o)
> s = str.join(os.linesep, s)
> return s
>
> The problem you are having suggests that the same line separator is
> used by R across
> all platforms (no matter what the platform's native separator is).
>
> Can you try the following ?
>
>
> import rpy2.robjects as robjects
>
>
> # patch 'repr'
> def repr_robject(o):
> s = robjects.r.deparse(o)
> s = str.join('\n', s)
> return s
> robjects.repr_robject = repr_robject
>
>
> x = robjects.r.rnorm(100)
> h = robjects.r('hist(%s, xlab="x", main="hist(x)")' %repr(x))
>
>
>
>
> Thanks,
>
>
> L.
>
>
>
>
>> TIA, Vince
>> ###
>> System is windows xp sp2
>> print(robjects.r)
>> <rpy2.robjects.R object at 0x00C522D0>An object of class "simple.list"
>>
>> $platform
>>
>> [1] "i386-pc-mingw32"
>> $arch
>> [1] "i386"
>> $os
>> [1] "mingw32"
>> $system
>> [1] "i386, mingw32"
>> $status
>> [1] ""
>> $major
>> [1] "2"
>> $minor
>> [1] "7.1"
>> $year
>> [1] "2008"
>> $month
>> [1] "06"
>> $day
>> [1] "23"
>> $`svn rev`
>> [1] "45970"
>> $language
>> [1] "R"
>> $version.string
>> [1] "R version 2.7.1 (2008-06-23)"
>>
>>
>>
>> --
>> Vince Fulco, CFA, CAIA
>> 612.424.5477 (universal)
>> [EMAIL PROTECTED]
>>
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