org-mode/contrib/babel/library-of-babel.org

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2.4 KiB
Org Mode

#+title: The Library of Babel
#+SEQ_TODO: TODO PROPOSED | DONE DEFERRED REJECTED
#+OPTIONS: H:3 num:nil toc:2 \n:nil @:t ::t |:t ^:t -:t f:t *:t TeX:t LaTeX:t skip:nil d:(HIDE) tags:not-in-toc
#+STARTUP: odd hideblocks
#+STYLE: <style type="text/css">#outline-container-1 { clear:both; }</style>
#+begin_html
<div id="logo" style="float: left; text-align: center; max-width: 340px; font-size: 8pt; margin-left: 1em;">
<p>
<img src="../../images/babel/library-of-babel.png" alt="Library of Babel"/>
<div id="attr">
The Library of Babel, by Pierre Clayette
<p>
<a href="http://downlode.org/Etext/library_of_babel.html">Full text of the Borges short story</a>
</p>
</div>
</p>
</div>
#+end_html
* Introduction
The Library of Babel is an extensible collection of ready-made and
easily-shortcut-callable source-code blocks for handling common
tasks. Org-babel comes pre-populated with the source-code blocks
located in this file. It is possible to add source-code blocks from
any org-mode file to the library by calling =(org-babel-lob-ingest
"path/to/file.org")=.
This file is included in worg mainly less for viewing through the
web interface, and more for contribution through the worg git
repository. If you have code snippets that you think others may
find useful please add them to this file and [[file:~/src/worg/worg-git.org::contribute-to-worg][contribute them]] to
worg.
The raw Org-mode text of this file can be downloaded at
[[repofile:contrib/babel/library-of-babel.org][library-of-babel.org]]
* Plotting code
** R
Plot column 2 (y axis) against column 1 (x axis). Columns 3 and beyond, if present, are ignored.
#+srcname: R-plot(data=R-plot-example-data)
#+begin_src R :session *R*
plot(data)
#+end_src
#+tblname: R-plot-example-data
| 1 | 2 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 25 |
#+lob: R-plot(data=R-plot-example-data)
#+resname: R-plot(data=R-plot-example-data)
: nil
** Gnuplot
* Table/Matrix manipulation
Elegant lisp code for transposing a matrix.
#+tblname: transpose-example
| 1 | 2 | 3 |
| 4 | 5 | 6 |
#+srcname: transpose
#+begin_src emacs-lisp :var table=transpose-example
(apply #'mapcar* #'list table)
#+end_src
#+resname:
| 1 | 4 |
| 2 | 5 |
| 3 | 6 |
* Misc
#+srcname: python-identity(a=1)
#+begin_src python
a
#+end_src
#+srcname: python-add(a=1, b=2)
#+begin_src python
a + b
#+end_src