On Wed, 2009-04-29 at 07:59 +0200, Vadim Axel wrote:
> Hi,
>
> Thanks for your help. I just didn't understand that rpy and rpy2 are
> two completely different versions. So, I installed one of them and
> read the manual of another.
>
> Now, I have more interesting problem:
>
>
> Running the following code results with the error: "#TypeError: object
> of type 'numpy.float32' has no 'len':"
> from numpy import *
> from rpy import *
> y = array([1,2,3], dtype=float32)
> x = array([4,5,6], dtype=float32)
> print r.lsfit(x,y)['coefficients']
>
> When I change my arrays to non-float, the code is working.:
> y = array([1,2,3])
> x = array([4,5,6])
>
> I am using:
>
> R: 2.7.0
> Python 2.5.4
> Numpy 1.3.0
> Rpy 1.0.3
> OS: Windows XP
>
> Any idea? Is there any chance in Rpy2 it will not happen?
>>> import rpy2.robjects as ro
>>> import rpy2.robjects.numpy2ri
>>> import numpy
>>> x = numpy.array([1,2,3], dtype = numpy.float32)
>>> y = numpy.array([4,5,6], dtype = numpy.float32)
>>> print(ro.r.lsfit(x,y)).r['coefficients']
$coefficients
Intercept X
3 1
> Thanks for help,
> Vadim
>
>
>
> On Tue, Apr 28, 2009 at 6:12 AM, laurent <[email protected]> wrote:
>
>
>
> On Mon, 2009-04-27 at 23:42 +0200, Vadim Axel wrote:
> > Hi,
> >
> > I tried to installed rpy on Windows XP and it looks that
> something
> > went wrong. As a matter of fact I am not sure that I didn't
> confuse
> > something with all these compatibility issues. I have the
> following
> > packages installed:
> > Python 2.5
> > R 2.8.1
> > rpy2-2.0.3.win32-py2.5.exe
> > pywin32-213.win32-py2.5.exe
> > I also have added C:\Program Files\R\R-2.8.1\bin to my PATH
> >
> > I am getting the following error in Python command prompt:
> > >>> from rpy2 import *
> > >>> r
> > Traceback (most recent call last):
> > File "<interactive input>", line 1, in <module>
> > NameError: name 'r' is not defined
> >
> > What do you I miss?
>
>
> May be a quick look at the documentation ?
> http://rpy.sourceforge.net/rpy2/doc/html/introduction.html
>
> > Thanks a lot for your help!
> >
> > Vadim
> >
>
> >
>
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