From: Eric S Fraga <e.fraga@ucl.ac.uk>
To: emacs-orgmode@gnu.org
Subject: [babel] how to pass data to gnuplot from another block
Date: Fri, 22 Nov 2013 09:57:20 +0000 [thread overview]
Message-ID: <87d2lsbvy7.fsf@ucl.ac.uk> (raw)
Hello,
everything I have seen on the list and on Worg seems to indicate that it
should be possible to pass data from a babel src block to a gnuplot src
block. See, for instance, the excellent article on data collection and
analysis at
http://orgmode.org/worg/org-contrib/babel/examples/data-collection-analysis.html
I don't have R so I have not tried the examples on this page. However,
I have tried the following using octave and gnuplot:
#+begin_src org
,#+TITLE: examplebug.org
,#+AUTHOR: Eric S Fraga
,* bubble and dew points
,#+name: bubble-point-temperatures
,#+begin_src octave :results raw output
A = [ 6.86880 6.84941]';
B = [1154.646 1206.001]';
C = [ 226.046 223.148]';
pv = @(T) 10.^(A-B./(T+C));
x = 0;
res = [];
while x<(1+1e-3)
f = @(T) 760 - [x (1-x)]*pv(T);
T = fsolve(f, 70);
printf("| %5.2f | %7.2f | \n", x, T);
res = [res; [x T] ];
x = x + 0.05;
endwhile
,#+end_src
,#+begin_src gnuplot :var data=bubble-point-temperatures :file "bubble.pdf"
set terminal pdfcairo mono enhanced font ",12" size 10cm,6cm
plot data
,#+end_src
,#+results:
[[file:bubble.pdf]]
#+end_src
Trying to execute the gnuplot block leads to an error in gnuplot because
the output of the octave data block is being put directly into the data
variable instead of into a file whose name is passed to the data
variable. The latter happens if the source of the data is a table
instead of a src block.
I have tried various combinations of output directives for the first src
block but to no avail.
I have tried this with "emacs -Q", by the way, and my org is up to date
as of a few minutes ago!
What am I doing wrong please?
Thanks,
eric
--
: Eric S Fraga (0xFFFCF67D), Emacs 24.3.50.1, Org release_8.2.3c-266-g7a726d
next reply other threads:[~2013-11-22 9:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-22 9:57 Eric S Fraga [this message]
2013-11-22 15:00 ` [babel] how to pass data to gnuplot from another block Eric Schulte
2013-11-22 17:27 ` Nick Dokos
2013-11-23 16:15 ` Eric Schulte
2013-12-13 15:23 ` Greg Troxel
2013-12-13 15:30 ` Eric Schulte
2013-12-13 15:48 ` Greg Troxel
2013-12-13 16:20 ` Eric Schulte
2013-12-13 17:13 ` Eric Schulte
2013-12-13 19:32 ` Nick Dokos
2013-12-13 22:40 ` Achim Gratz
2013-12-13 23:18 ` Eric Schulte
2013-12-14 10:21 ` Achim Gratz
2013-12-13 18:38 ` Greg Troxel
2013-12-13 19:08 ` Sebastien Vauban
2013-12-13 16:32 ` Achim Gratz
2013-12-05 7:35 ` Eric S Fraga
2013-12-05 18:29 ` Eric Schulte
2013-12-05 19:59 ` Eric S Fraga
2013-12-06 2:06 ` Eric Schulte
2013-12-06 11:59 ` Eric S Fraga
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