[IPython-dev] use of InteractiveShell and R magic

Jonathan Taylor jonathan.taylor@stanford....
Thu Jun 14 17:44:00 CDT 2012


Actually, I want to create an InteractiveShell inside another python
process. Maybe I should use embed?

Inside ipython this doesn't work, but maybe it would inside another python
process?

In [12]: import IPython.frontend.terminal as IT

In [13]: shell = IT.embed.InteractiveShellEmbed()

In [14]: shell.run_cell('%R X=rnorm(20)')
ERROR: Line magic function `%R` not found.

On Thu, Jun 14, 2012 at 3:35 PM, MinRK <benjaminrk@gmail.com> wrote:

>
>
> On Thu, Jun 14, 2012 at 3:23 PM, Jonathan Taylor <
> jonathan.taylor@stanford.edu> wrote:
>
>> I'm trying to run some cells through InteractiveShell and am getting an
>> unexpected error message which is that my shell
>> can't find the %R line magic:
>>
>>
>> In [1]: import IPython.frontend.terminal.interactiveshell as IS
>>
>> In [2]: shell = IS.InteractiveShell()
>>
>> In [3]: shell.run_cell('%load_ext rmagic')
>>
>> In [4]: shell.run_cell('%R X=rnorm(20)')
>> ERROR: Line magic function `%R` not found.
>> In [5]:
>>
>> In [5]: load_ext rmagic
>>
>> In [6]: %R X=rnorm(20)
>> Out[6]:
>> array([ 0.08724969,  2.03344439, -0.82111458, -2.07136391, -0.11913743,
>>         0.19598438,  0.58574042, -0.33684877, -0.9659225 , -0.68404775,
>>        -0.0278716 ,  1.34169008, -0.6034878 ,  1.76146422, -0.19225874,
>>        -1.15088263, -1.10644146, -1.27298014, -1.18212805,  1.60194601])
>>
>> Is this expected? I can't tell.
>>
>
> One thing that's not at all expected is creating a new InteractiveShell
> inside an InteractiveShell.  Do you mean to be creating a whole new
> InteractiveShell object in which to run these commands?
>
> If you want a handle on the*existing* shell, you can use: shell =
> get_ipython().
>
> If you do that, your run_cell calls above seem to behave as you are
> expecting.
>
> -MinRK
>
>
>>
>>
>> --
>> Jonathan Taylor
>> Dept. of Statistics
>> Sequoia Hall, 137
>> 390 Serra Mall
>> Stanford, CA 94305
>> Tel:   650.723.9230
>> Fax:   650.725.8977
>> Web: http://www-stat.stanford.edu/~jtaylo
>>
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>>
>>
>
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>


-- 
Jonathan Taylor
Dept. of Statistics
Sequoia Hall, 137
390 Serra Mall
Stanford, CA 94305
Tel:   650.723.9230
Fax:   650.725.8977
Web: http://www-stat.stanford.edu/~jtaylo
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