org-babel pass data between blocks

org-babel pass data between blocks

[Marvin Doyley]

Dear All,

Is there way to pass data between blocks in org-babel. For example lets say have two blocks


#+begin_src python
from pylab import *
# Simple carrier
t=linspace(0,1,100);
fc=100;
Ac =1;
C=Ac*cos(2*pi*t);

#+end_src


What I would like to do is to pass both C and t to another python block, but it is not clear how to do this.

#+begin_src python 
from pylab import *

fm=1;
Am=1
m=Am*cos(2*pi*t); # message signal

z=m*C;   #double side-band modulated signal

#+end_src



Thanks,
M

Re: org-babel pass data between blocks

[Alan Schmitt]

On 2014-04-28 14:41, Marvin Doyley <marvinpas@gmail.com> writes:

> Dear All,
>
> Is there way to pass data between blocks in org-babel. For example lets say have two blocks
>
>
> #+begin_src python
> from pylab import *
> # Simple carrier
> t=linspace(0,1,100);
> fc=100;
> Ac =1;
> C=Ac*cos(2*pi*t);
>
> #+end_src
>
>
> What I would like to do is to pass both C and t to another python block, but it is not clear how to do this.
>
> #+begin_src python 
> from pylab import *
>
> fm=1;
> Am=1
> m=Am*cos(2*pi*t); # message signal
>
> z=m*C;   #double side-band modulated signal
>
> #+end_src

I see three options (there are probably many others):
- use a session (see
http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-python.html
for instance);
- have C and t be the results of the first block, and chain the blocks;
- use noweb to include the second block is the first block.

Alan

Re: org-babel pass data between blocks

[Marvin Doyley]

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Thanks,

Your first option works like a charm

cheers,
M
On Apr 28, 2014, at 9:07 AM, Alan Schmitt <alan.schmitt@polytechnique.org> wrote:

> On 2014-04-28 14:41, Marvin Doyley <marvinpas@gmail.com> writes:
> 
>> Dear All,
>> 
>> Is there way to pass data between blocks in org-babel. For example lets say have two blocks
>> 
>> 
>> #+begin_src python
>> from pylab import *
>> # Simple carrier
>> t=linspace(0,1,100);
>> fc=100;
>> Ac =1;
>> C=Ac*cos(2*pi*t);
>> 
>> #+end_src
>> 
>> 
>> What I would like to do is to pass both C and t to another python block, but it is not clear how to do this.
>> 
>> #+begin_src python 
>> from pylab import *
>> 
>> fm=1;
>> Am=1
>> m=Am*cos(2*pi*t); # message signal
>> 
>> z=m*C;   #double side-band modulated signal
>> 
>> #+end_src
> 
> I see three options (there are probably many others):
> - use a session (see
> http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-python.html
> for instance);
> - have C and t be the results of the first block, and chain the blocks;
> - use noweb to include the second block is the first block.
> 
> Alan


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