* Computations on properties
@ 2013-10-09 12:19 Thierry Pellé
2013-10-09 12:50 ` Thorsten Jolitz
` (2 more replies)
0 siblings, 3 replies; 11+ messages in thread
From: Thierry Pellé @ 2013-10-09 12:19 UTC (permalink / raw)
To: emacs-orgmode
Hi,
I'm seeking how to do something like that
Let the following text inserted in an org-mode file
* Mean Calculation
:PROPERTIES:
:VAL1: 5
:VAL2: 10
:COEF: 10
:END:
I would like to append the result of a computation
like RES=(VAL1*COEF+VAL2)/(COEF+1)
Something like
* Mean Calculation
...
:END:
Mean Calculation=RES (where RES is the value of the result)
I think to do this with a python script but is there a more org-mode/emacs
method to do it?
Thanks
Thierry
PS: I don't want to use org spreadsheet
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 12:19 Computations on properties Thierry Pellé
@ 2013-10-09 12:50 ` Thorsten Jolitz
2013-10-09 13:32 ` Thierry Pellé
2013-10-09 15:29 ` Eric Abrahamsen
2013-10-09 19:27 ` Michael Brand
2 siblings, 1 reply; 11+ messages in thread
From: Thorsten Jolitz @ 2013-10-09 12:50 UTC (permalink / raw)
To: emacs-orgmode
Thierry Pellé <thierry.pelle@soliavos.fr> writes:
Hi,
> I'm seeking how to do something like that
>
> Let the following text inserted in an org-mode file
>
> * Mean Calculation
> :PROPERTIES:
> :VAL1: 5
> :VAL2: 10
> :COEF: 10
> :END:
>
> I would like to append the result of a computation
> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>
> Something like
> * Mean Calculation
> ...
> :END:
>
> Mean Calculation=RES (where RES is the value of the result)
>
> I think to do this with a python script but is there a more org-mode/emacs
> method to do it?
>
> Thanks
> Thierry
>
> PS: I don't want to use org spreadsheet
But that would probably be the appropriate tool. Otherwise you could use
the property API in an elisp program
,------------------------------------------------------
| http://orgmode.org/manual/Using-the-property-API.html
`------------------------------------------------------
to read out the property values. Then do the calculation and finally add
a new property with the result.
--
cheers,
Thorsten
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 12:50 ` Thorsten Jolitz
@ 2013-10-09 13:32 ` Thierry Pellé
0 siblings, 0 replies; 11+ messages in thread
From: Thierry Pellé @ 2013-10-09 13:32 UTC (permalink / raw)
To: emacs-orgmode
Thank you for the reply
> > PS: I don't want to use org spreadsheet
>
> But that would probably be the appropriate tool.
I know, but I can't figure out how to extract the speadsheet computed value
into the text...
> Otherwise you could use
> the property API in an elisp program
>
> ,------------------------------------------------------
> | http://orgmode.org/manual/Using-the-property-API.html
> `------------------------------------------------------
>
> to read out the property values. Then do the calculation and finally add
> a new property with the result.
>
I look at it.
Thanks.
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 12:19 Computations on properties Thierry Pellé
2013-10-09 12:50 ` Thorsten Jolitz
@ 2013-10-09 15:29 ` Eric Abrahamsen
2013-10-09 17:12 ` Thorsten Jolitz
2013-10-09 19:27 ` Michael Brand
2 siblings, 1 reply; 11+ messages in thread
From: Eric Abrahamsen @ 2013-10-09 15:29 UTC (permalink / raw)
To: emacs-orgmode
Thierry Pellé <thierry.pelle@soliavos.fr> writes:
> Hi,
> I'm seeking how to do something like that
>
> Let the following text inserted in an org-mode file
>
> * Mean Calculation
> :PROPERTIES:
> :VAL1: 5
> :VAL2: 10
> :COEF: 10
> :END:
>
> I would like to append the result of a computation
> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>
> Something like
> * Mean Calculation
> ...
> :END:
>
> Mean Calculation=RES (where RES is the value of the result)
>
> I think to do this with a python script but is there a more org-mode/emacs
> method to do it?
Sometimes I think it would be nice to have a way to draw property values
directly into a babel block, the way you can with table data. Sort of
like:
* Heading
:PROPERTIES:
:ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
:foo: 5
:bar: puppy
:END:
#+BEGIN_SRC emacs-lisp :var alist=3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
And in the block, the "alist" variable would look like '(:foo 5 :bar
"puppy").
What would be even better would be to run a tags search on matching
headlines and feed all property drawers into a single block, as a list
of alists. Just thinking out loud...
E
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 15:29 ` Eric Abrahamsen
@ 2013-10-09 17:12 ` Thorsten Jolitz
2013-10-09 18:21 ` Eric Abrahamsen
2013-10-09 18:23 ` Eric Schulte
0 siblings, 2 replies; 11+ messages in thread
From: Thorsten Jolitz @ 2013-10-09 17:12 UTC (permalink / raw)
To: emacs-orgmode
Eric Abrahamsen <eric@ericabrahamsen.net> writes:
> Thierry Pellé <thierry.pelle@soliavos.fr> writes:
>
>> Hi,
>> I'm seeking how to do something like that
>>
>> Let the following text inserted in an org-mode file
>>
>> * Mean Calculation
>> :PROPERTIES:
>> :VAL1: 5
>> :VAL2: 10
>> :COEF: 10
>> :END:
>>
>> I would like to append the result of a computation
>> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>>
>> Something like
>> * Mean Calculation
>> ...
>> :END:
>>
>> Mean Calculation=RES (where RES is the value of the result)
>>
>> I think to do this with a python script but is there a more org-mode/emacs
>> method to do it?
>
> Sometimes I think it would be nice to have a way to draw property values
> directly into a babel block, the way you can with table data. Sort of
> like:
>
> * Heading
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
> :foo: 5
> :bar: puppy
> :END:
>
> #+BEGIN_SRC emacs-lisp :var alist=3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>
> And in the block, the "alist" variable would look like '(:foo 5 :bar
> "puppy").
>
> What would be even better would be to run a tags search on matching
> headlines and feed all property drawers into a single block, as a list
> of alists. Just thinking out loud...
This is probably not really what you want, but at least somehow related. I
would not know how to do this via source-block arguments, but maybe you can
use the results of one source-block (that produces the data) as input for
another source-block that does the real work.
* Heading 1 :match:
:PROPERTIES:
:ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
:foo: 5
:bar: puppy
:END:
* Heading 2
:PROPERTIES:
:ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5b
:foo: 6
:bar: yuppy
:END:
* Heading 3 :match:
:PROPERTIES:
:ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c
:foo: 7
:bar: hippie
:END:
#+begin_src emacs-lisp :results raw
(let ((lst))
(org-map-entries
(lambda () (cons (org-entry-properties) lst))
"match" 'file))
#+end_src
#+results:
((((FILE . /home/tj/News/drafts/drafts/419) (TAGS . :match:) (ALLTAGS
. :match:) (BLOCKED . ) (ID . 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a) (foo . 5)
(bar . puppy) (CATEGORY . 419))) (((FILE . /home/tj/News/drafts/drafts/419)
(TAGS . :match:) (ALLTAGS . :match:) (BLOCKED . ) (ID .
3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c) (foo . 7) (bar . hippie) (CATEGORY .
419))))
--
cheers,
Thorsten
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 17:12 ` Thorsten Jolitz
@ 2013-10-09 18:21 ` Eric Abrahamsen
2013-10-09 18:23 ` Eric Schulte
1 sibling, 0 replies; 11+ messages in thread
From: Eric Abrahamsen @ 2013-10-09 18:21 UTC (permalink / raw)
To: emacs-orgmode
Thorsten Jolitz <tjolitz@gmail.com> writes:
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> Thierry Pellé <thierry.pelle@soliavos.fr> writes:
>>
>>> Hi,
>>> I'm seeking how to do something like that
>>>
>>> Let the following text inserted in an org-mode file
>>>
>>> * Mean Calculation
>>> :PROPERTIES:
>>> :VAL1: 5
>>> :VAL2: 10
>>> :COEF: 10
>>> :END:
>>>
>>> I would like to append the result of a computation
>>> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>>>
>>> Something like
>>> * Mean Calculation
>>> ...
>>> :END:
>>>
>>> Mean Calculation=RES (where RES is the value of the result)
>>>
>>> I think to do this with a python script but is there a more org-mode/emacs
>>> method to do it?
>>
>> Sometimes I think it would be nice to have a way to draw property values
>> directly into a babel block, the way you can with table data. Sort of
>> like:
>>
>> * Heading
>> :PROPERTIES:
>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>> :foo: 5
>> :bar: puppy
>> :END:
>>
>> #+BEGIN_SRC emacs-lisp :var alist=3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>>
>> And in the block, the "alist" variable would look like '(:foo 5 :bar
>> "puppy").
>>
>> What would be even better would be to run a tags search on matching
>> headlines and feed all property drawers into a single block, as a list
>> of alists. Just thinking out loud...
>
> This is probably not really what you want, but at least somehow related. I
> would not know how to do this via source-block arguments, but maybe you can
> use the results of one source-block (that produces the data) as input for
> another source-block that does the real work.
Sure, it's certainly doable, and in more than one way, but I think
that's part of the problem: the reason the table-to-src-block-var
process is so great is that it feels purpose-built to do what it does.
For properties you've got search, column view, and the API, but it never
quite feels like the potential is unlocked...
> * Heading 1 :match:
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
> :foo: 5
> :bar: puppy
> :END:
>
> * Heading 2
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5b
> :foo: 6
> :bar: yuppy
> :END:
>
>
> * Heading 3 :match:
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c
> :foo: 7
> :bar: hippie
> :END:
>
>
> #+begin_src emacs-lisp :results raw
> (let ((lst))
> (org-map-entries
> (lambda () (cons (org-entry-properties) lst))
> "match" 'file))
> #+end_src
>
> #+results:
> ((((FILE . /home/tj/News/drafts/drafts/419) (TAGS . :match:) (ALLTAGS
> . :match:) (BLOCKED . ) (ID . 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a) (foo . 5)
> (bar . puppy) (CATEGORY . 419))) (((FILE . /home/tj/News/drafts/drafts/419)
> (TAGS . :match:) (ALLTAGS . :match:) (BLOCKED . ) (ID .
> 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c) (foo . 7) (bar . hippie) (CATEGORY .
> 419))))
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 17:12 ` Thorsten Jolitz
2013-10-09 18:21 ` Eric Abrahamsen
@ 2013-10-09 18:23 ` Eric Schulte
2013-10-10 4:52 ` Eric Abrahamsen
1 sibling, 1 reply; 11+ messages in thread
From: Eric Schulte @ 2013-10-09 18:23 UTC (permalink / raw)
To: Thorsten Jolitz; +Cc: emacs-orgmode
[-- Attachment #1: Type: text/plain, Size: 2736 bytes --]
Thorsten Jolitz <tjolitz@gmail.com> writes:
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> Thierry Pellé <thierry.pelle@soliavos.fr> writes:
>>
>>> Hi,
>>> I'm seeking how to do something like that
>>>
>>> Let the following text inserted in an org-mode file
>>>
>>> * Mean Calculation
>>> :PROPERTIES:
>>> :VAL1: 5
>>> :VAL2: 10
>>> :COEF: 10
>>> :END:
>>>
>>> I would like to append the result of a computation
>>> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>>>
>>> Something like
>>> * Mean Calculation
>>> ...
>>> :END:
>>>
>>> Mean Calculation=RES (where RES is the value of the result)
>>>
>>> I think to do this with a python script but is there a more org-mode/emacs
>>> method to do it?
>>
>> Sometimes I think it would be nice to have a way to draw property values
>> directly into a babel block, the way you can with table data. Sort of
>> like:
>>
>> * Heading
>> :PROPERTIES:
>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>> :foo: 5
>> :bar: puppy
>> :END:
>>
>> #+BEGIN_SRC emacs-lisp :var alist=3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>>
>> And in the block, the "alist" variable would look like '(:foo 5 :bar
>> "puppy").
>>
>> What would be even better would be to run a tags search on matching
>> headlines and feed all property drawers into a single block, as a list
>> of alists. Just thinking out loud...
>
> This is probably not really what you want, but at least somehow related. I
> would not know how to do this via source-block arguments, but maybe you can
> use the results of one source-block (that produces the data) as input for
> another source-block that does the real work.
>
> * Heading 1 :match:
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
> :foo: 5
> :bar: puppy
> :END:
>
> * Heading 2
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5b
> :foo: 6
> :bar: yuppy
> :END:
>
>
> * Heading 3 :match:
> :PROPERTIES:
> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c
> :foo: 7
> :bar: hippie
> :END:
>
>
> #+begin_src emacs-lisp :results raw
> (let ((lst))
> (org-map-entries
> (lambda () (cons (org-entry-properties) lst))
> "match" 'file))
> #+end_src
>
> #+results:
> ((((FILE . /home/tj/News/drafts/drafts/419) (TAGS . :match:) (ALLTAGS
> . :match:) (BLOCKED . ) (ID . 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a) (foo . 5)
> (bar . puppy) (CATEGORY . 419))) (((FILE . /home/tj/News/drafts/drafts/419)
> (TAGS . :match:) (ALLTAGS . :match:) (BLOCKED . ) (ID .
> 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c) (foo . 7) (bar . hippie) (CATEGORY .
> 419))))
Or maybe something like the following...
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: property-computation.org --]
[-- Type: text/x-org, Size: 478 bytes --]
* Mean Calculation
:PROPERTIES:
:VAL1: 5
:VAL2: 10
:COEF: 10
:END:
#+begin_src python :var props=(mapcar (lambda (p) (list (car p) (cdr p))) (org-entry-properties))
return props
#+end_src
#+RESULTS:
| FILE | /tmp/property-computation.org |
| BLOCKED | |
| VAL1 | 5 |
| VAL2 | 10 |
| COEF | 10 |
| CATEGORY | property-computation |
[-- Attachment #3: Type: text/plain, Size: 63 bytes --]
--
Eric Schulte
https://cs.unm.edu/~eschulte
PGP: 0x614CA05D
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 12:19 Computations on properties Thierry Pellé
2013-10-09 12:50 ` Thorsten Jolitz
2013-10-09 15:29 ` Eric Abrahamsen
@ 2013-10-09 19:27 ` Michael Brand
2013-10-10 6:39 ` Thierry Pellé
2 siblings, 1 reply; 11+ messages in thread
From: Michael Brand @ 2013-10-09 19:27 UTC (permalink / raw)
To: Thierry Pellé; +Cc: Org Mode
Hi Thierry
On Wed, Oct 9, 2013 at 2:19 PM, Thierry Pellé <thierry.pelle@soliavos.fr> wrote:
> Mean Calculation=RES (where RES is the value of the result)
One more variant would be to use inline source block calls either
interactively with C-c C-c or during export. An example with shell
(python would be very similar) or the built-in Emacs Lisp is in the
Emacs Regression Test ERT in the top heading "use case of reading
entry properties" here:
http://orgmode.org/w/?p=org-mode.git;a=blob;f=testing/examples/babel.org
Your use case, here with Emacs Lisp, would be e. g.:
--------------------------------
* Mean Calculation
:PROPERTIES:
:VAL1: 5
:VAL2: 10
:COEF: 10
:END:
Mean Calculation = call_mean() =5.454545454545454=
* code :noexport:
#+NAME: mean
#+HEADER: :var val1='nil
#+HEADER: :var val2='nil
#+HEADER: :var coef='nil
#+BEGIN_SRC emacs-lisp :exports none
(setq
val1 (string-to-number (org-entry-get
org-babel-current-src-block-location "VAL1" t))
val2 (string-to-number (org-entry-get
org-babel-current-src-block-location "VAL2" t))
coef (string-to-number (org-entry-get
org-babel-current-src-block-location "COEF" t)))
(/ (+ (* val1 coef) val2) (+ coef 1.0))
#+END_SRC
--------------------------------
Michael
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 18:23 ` Eric Schulte
@ 2013-10-10 4:52 ` Eric Abrahamsen
0 siblings, 0 replies; 11+ messages in thread
From: Eric Abrahamsen @ 2013-10-10 4:52 UTC (permalink / raw)
To: emacs-orgmode
Eric Schulte <schulte.eric@gmail.com> writes:
> Thorsten Jolitz <tjolitz@gmail.com> writes:
>
>> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>>
>>> Thierry Pellé <thierry.pelle@soliavos.fr> writes:
>>>
>>>> Hi,
>>>> I'm seeking how to do something like that
>>>>
>>>> Let the following text inserted in an org-mode file
>>>>
>>>> * Mean Calculation
>>>> :PROPERTIES:
>>>> :VAL1: 5
>>>> :VAL2: 10
>>>> :COEF: 10
>>>> :END:
>>>>
>>>> I would like to append the result of a computation
>>>> like RES=(VAL1*COEF+VAL2)/(COEF+1)
>>>>
>>>> Something like
>>>> * Mean Calculation
>>>> ...
>>>> :END:
>>>>
>>>> Mean Calculation=RES (where RES is the value of the result)
>>>>
>>>> I think to do this with a python script but is there a more org-mode/emacs
>>>> method to do it?
>>>
>>> Sometimes I think it would be nice to have a way to draw property values
>>> directly into a babel block, the way you can with table data. Sort of
>>> like:
>>>
>>> * Heading
>>> :PROPERTIES:
>>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>>> :foo: 5
>>> :bar: puppy
>>> :END:
>>>
>>> #+BEGIN_SRC emacs-lisp :var alist=3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>>>
>>> And in the block, the "alist" variable would look like '(:foo 5 :bar
>>> "puppy").
>>>
>>> What would be even better would be to run a tags search on matching
>>> headlines and feed all property drawers into a single block, as a list
>>> of alists. Just thinking out loud...
>>
>> This is probably not really what you want, but at least somehow related. I
>> would not know how to do this via source-block arguments, but maybe you can
>> use the results of one source-block (that produces the data) as input for
>> another source-block that does the real work.
>>
>> * Heading 1 :match:
>> :PROPERTIES:
>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a
>> :foo: 5
>> :bar: puppy
>> :END:
>>
>> * Heading 2
>> :PROPERTIES:
>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5b
>> :foo: 6
>> :bar: yuppy
>> :END:
>>
>>
>> * Heading 3 :match:
>> :PROPERTIES:
>> :ID: 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c
>> :foo: 7
>> :bar: hippie
>> :END:
>>
>>
>> #+begin_src emacs-lisp :results raw
>> (let ((lst))
>> (org-map-entries
>> (lambda () (cons (org-entry-properties) lst))
>> "match" 'file))
>> #+end_src
>>
>> #+results:
>> ((((FILE . /home/tj/News/drafts/drafts/419) (TAGS . :match:) (ALLTAGS
>> . :match:) (BLOCKED . ) (ID . 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5a) (foo . 5)
>> (bar . puppy) (CATEGORY . 419))) (((FILE . /home/tj/News/drafts/drafts/419)
>> (TAGS . :match:) (ALLTAGS . :match:) (BLOCKED . ) (ID .
>> 3f78f08a-ccca-4fc0-aba9-2a192f7a0e5c) (foo . 7) (bar . hippie) (CATEGORY .
>> 419))))
>
> Or maybe something like the following...
>
> * Mean Calculation
> :PROPERTIES:
> :VAL1: 5
> :VAL2: 10
> :COEF: 10
> :END:
>
> #+begin_src python :var props=(mapcar (lambda (p) (list (car p) (cdr p))) (org-entry-properties))
> return props
> #+end_src
This is very cool! Thanks.
> #+RESULTS:
> | FILE | /tmp/property-computation.org |
> | BLOCKED | |
> | VAL1 | 5 |
> | VAL2 | 10 |
> | COEF | 10 |
> | CATEGORY | property-computation |
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-09 19:27 ` Michael Brand
@ 2013-10-10 6:39 ` Thierry Pellé
2013-10-10 9:04 ` Michael Brand
0 siblings, 1 reply; 11+ messages in thread
From: Thierry Pellé @ 2013-10-10 6:39 UTC (permalink / raw)
To: emacs-orgmode
After some tests :
==> the idea of Michael
> --------------------------------
> * Mean Calculation
> :PROPERTIES:
> :VAL1: 5
> :VAL2: 10
> :COEF: 10
> :END:
>
> Mean Calculation = call_mean() =5.454545454545454=
>
> * code :noexport:
> #+NAME: mean
> #+HEADER: :var val1='nil
> #+HEADER: :var val2='nil
> #+HEADER: :var coef='nil
> #+BEGIN_SRC emacs-lisp :exports none
> (setq
> val1 (string-to-number (org-entry-get
> org-babel-current-src-block-location "VAL1" t))
> val2 (string-to-number (org-entry-get
> org-babel-current-src-block-location "VAL2" t))
> coef (string-to-number (org-entry-get
> org-babel-current-src-block-location "COEF" t)))
> (/ (+ (* val1 coef) val2) (+ coef 1.0))
> #+END_SRC
> --------------------------------
give an error ( "Symbol's value as variable is void:
org-babel-current-src-block-location")
==> After some tests, it works in changing the "setq" part as
val1 (or val1 (string-to-number
(org-entry-get org-babel-current-src-block-location "VAL1" t)
))
I can't figure out why...
==> I will try with python...
Thanks
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Computations on properties
2013-10-10 6:39 ` Thierry Pellé
@ 2013-10-10 9:04 ` Michael Brand
0 siblings, 0 replies; 11+ messages in thread
From: Michael Brand @ 2013-10-10 9:04 UTC (permalink / raw)
To: Thierry Pellé; +Cc: Org Mode, Eric Schulte
[-- Attachment #1: Type: text/plain, Size: 2259 bytes --]
Hi Thierry
On Thu, Oct 10, 2013 at 8:39 AM, Thierry Pellé
<thierry.pelle@soliavos.fr> wrote:
> After some tests :
> ==> the idea of Michael
>> --------------------------------
>> * Mean Calculation
>> :PROPERTIES:
>> :VAL1: 5
>> :VAL2: 10
>> :COEF: 10
>> :END:
>>
>> Mean Calculation = call_mean() =5.454545454545454=
>>
>> * code :noexport:
>> #+NAME: mean
>> #+HEADER: :var val1='nil
>> #+HEADER: :var val2='nil
>> #+HEADER: :var coef='nil
>> #+BEGIN_SRC emacs-lisp :exports none
>> (setq
>> val1 (string-to-number (org-entry-get
>> org-babel-current-src-block-location "VAL1" t))
>> val2 (string-to-number (org-entry-get
>> org-babel-current-src-block-location "VAL2" t))
>> coef (string-to-number (org-entry-get
>> org-babel-current-src-block-location "COEF" t)))
>> (/ (+ (* val1 coef) val2) (+ coef 1.0))
>> #+END_SRC
>> --------------------------------
>
> give an error ( "Symbol's value as variable is void:
> org-babel-current-src-block-location")
This I would expect from an org-version older than 8.1. Check
C-h v org-babel-current-src-block-location
M-x org-version
But if you did not change the version there might be some problem
before the first loading of ob-core.el. If you can reproduce it, maybe
with a fresh started Emacs, I hope that someone more familiar with
autoload etc. than me can help.
> ==> After some tests, it works in changing the "setq" part as
> val1 (or val1 (string-to-number
> (org-entry-get org-babel-current-src-block-location "VAL1" t)
> ))
This does still not deal with all cases. As you seem to dive deeper
please forget my simplified version posted earlier and see
testing/examples/babel.org.
> I can't figure out why...
See the attached patch that adds comments to
testing/examples/babel.org for the two "or" and more.
CCed Eric Schulte who I would like to ask to review and apply the patch.
> ==> I will try with python...
Start from the shell example in testing/examples/babel.org
Did you check if you need the t or nil for org-entry-get?
Michael
[-- Attachment #2: 0001-Babel-add-comments-to-ERT-for-reading-properties.patch.txt --]
[-- Type: text/plain, Size: 1632 bytes --]
From 0b7caf6adfcab1a6ad2b1aa330e7bd15c3be33d3 Mon Sep 17 00:00:00 2001
From: Michael Brand <michael.ch.brand@gmail.com>
Date: Thu, 10 Oct 2013 11:02:19 +0200
Subject: [PATCH] Babel: add comments to ERT for reading properties
* testing/examples/babel.org (use case of reading entry properties):
Add comments to function definitions.
---
testing/examples/babel.org | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/testing/examples/babel.org b/testing/examples/babel.org
index b1f1702..5c71834 100644
--- a/testing/examples/babel.org
+++ b/testing/examples/babel.org
@@ -413,6 +413,9 @@ Note: Just export of a property can be done with a macro: {{{property(a)}}}.
**** function definition
+comments for ":var":
+- The "or" is to deal with a property not present.
+- The t is to get property inheritance.
#+NAME: src_block_location_shell
#+HEADER: :var a=(or (org-entry-get org-babel-current-src-block-location "a" t) "0")
#+HEADER: :var b=(or (org-entry-get org-babel-current-src-block-location "b" t) "0")
@@ -433,6 +436,11 @@ Note: Just export of a property can be done with a macro: {{{property(a)}}}.
#+HEADER: :var e='nil
#+BEGIN_SRC emacs-lisp :exports results
(setq
+ ;; - The first `or' together with ":var <var>='nil' is to check for
+ ;; a value bound from an optional call argument, in the examples
+ ;; here: c=5, e=6
+ ;; - The second `or' is to deal with a property not present
+ ;; - The t is to get property inheritance
a (or a (string-to-number
(or (org-entry-get org-babel-current-src-block-location "a" t)
"0")))
--
1.7.12.4 (Apple Git-37)
^ permalink raw reply related [flat|nested] 11+ messages in thread
end of thread, other threads:[~2013-10-10 9:04 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-10-09 12:19 Computations on properties Thierry Pellé
2013-10-09 12:50 ` Thorsten Jolitz
2013-10-09 13:32 ` Thierry Pellé
2013-10-09 15:29 ` Eric Abrahamsen
2013-10-09 17:12 ` Thorsten Jolitz
2013-10-09 18:21 ` Eric Abrahamsen
2013-10-09 18:23 ` Eric Schulte
2013-10-10 4:52 ` Eric Abrahamsen
2013-10-09 19:27 ` Michael Brand
2013-10-10 6:39 ` Thierry Pellé
2013-10-10 9:04 ` Michael Brand
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