[IPython-User] numerical inaccuracy on osx (notebook)

Thomas Kluyver takowl@gmail....
Mon Jun 24 13:13:45 CDT 2013


Can you see where each is importing numpy from?


On 24 June 2013 19:09, epi <massimodisasha@gmail.com> wrote:

> Matthias,
>
> i removed "all" the ipython installation i found on my system (system
> python, brew python)
>
> then i reinstalled ipython with pip  (pip install -U ipython)
>
> which ipython
> /usr/local/share/python/ipython
>
> ipython --version
> 0.13.2
>
>
> testing in the notebook  the lines :
>
> import numpy as np
> url='http://www.cdc.noaa.gov/Correlation/amon.us.long.data'
> data = np.genfromtxt(url, skip_header=1, skip_footer=4)
>
> data[:, 1:][0]
>
> array([ 0.22 ,  0.153,  0.224,  0.143,  0.196,  0.218,  0.232,  0.209,
>         0.276,  0.126,  0.136,  0.23 ])
>
> from the url :   http://www.cdc.noaa.gov/Correlation/amon.us.long.data
>
> the first row is :
>
> 1856    0.220    0.153    0.225    0.144    0.196    0.219    0.232
>  0.209    0.276    0.126    0.137    0.231
>
>
> I think the problem is in the notebook + bumpy/pylab  can be possible ?
> because in the notebook the pandas example work just fine (same results
> between notebook and shell/qtconsole)
> or something related to my locale / system profiles / ipython config ?
>
>
>
> i tried to open the qtconsole from inside the notebook "  %qtconsole magic
> "
> and i got the same problem.
>
> attached a screenshot [1]
> on the left the ipython shell and qt console running from the bash command
> line
> on the right the notebook and qt console running from the qtconsole magic
>
> [1] http://geofemengineering.it/logs/test_np.png
>
>
> Il giorno 24/giu/2013, alle ore 13:09, Matthias BUSSONNIER <
> bussonniermatthias@gmail.com> ha scritto:
>
> >
> > Le 24 juin 2013 à 19:00, epi a écrit :
> >
> >> Hi Matthias,
> >
> > Hi Massimo,
> >
> >>
> >> i do not have EPD/ANACONDA installed.
> >> i'm  running homebrew python with ipython installed from source (GIT
> master)
> >
> > Does the same happened if you start qtconsole from the notebook with the
> %qtconsole magic ?
> > I'm really astonished about how qtconsole  and notebook could differ.
> > --
> > Matthias
> >
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>
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