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org-babel-ded-worg.org contents are now in new file org-babel-worg.org
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#+STARTUP: align fold nodlcheck hidestars oddeven lognotestate
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#+SEQ_TODO: TODO(t) INPROGRESS(i) WAITING(w@) | DONE(d) CANCELED(c@)
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#+TAGS: Write(w) Update(u) Fix(f) Check(c)
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#+TITLE: org-babel: execution of source code blocks in org-mode
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#+AUTHOR: Dan Davison
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#+TITLE: org-babel: executable source code blocks in org-mode
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#+AUTHOR: Dan Davison, Eric Schulte
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#+EMAIL: davison at stats dot ox dot ac dot uk
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#+LANGUAGE: en
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#+CATEGORY: worg
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@ -44,16 +44,6 @@ c(5, 10)
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| 5 |
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| 10 |
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*** What happens to the results?
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Org-babel provides two fundamentally different modes for capturing
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the results of code evaluation, specified by the :results header
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@ -75,47 +65,20 @@ c(5, 10)
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users).
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**** Additional :results settings
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*** Arguments to source code blocks
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In addition to evaluation of code blocks, org-babel allows them to
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be parameterised (i.e. have arguments). Thus source code blocks
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now have the status of *functions*.
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*** Internals
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For those interested in hacking org-babel, it's worth going
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through what actually happened there:
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***** org-babel-execute-src
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1. parses source block info (recognises language, looks for
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arguments (there aren't any))
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2. calls
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***** org-babel-execute:LANG
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1. resolves referenced variables (there aren't any)
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2. assigns any referenced variables and evaluates body
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***** org-babel-LANG-evaluate
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Returns a string corresponding to either output or value of block.
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#+resname:
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: Sun Jul 5 14:17:31 EDT 2009
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#+begin_src R :results output
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date()
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#+end_src
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#+resname:
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: Sun Jul 5 14:00:20 2009
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#+begin_src python
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import time
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time.ctime()
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#+end_src
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#+resname:
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: Sun Jul 5 14:13:07 2009
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* A meta-programming language for org-mode
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* Spreadsheet plugins for org-mode in any language
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* Reproducible research
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- output vs. value mode
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- file & graphical output
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- controlling export
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* Literate programming
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- org-babel-tangle
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- org-babel-load-file
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* Reference / Documentation
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*** Source Code block syntax
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