User:Timothee Flutre/Notebook/Postdoc/2012/05/16: Difference between revisions

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==Entry title==
==About programming==
* Insert content here...


* '''Resources''': most of the time, it's not necessary to buy a book, search online instead!
** [http://software-carpentry.org/ Software Carpentry] to learn about tests, versioning, Makefile, regular expressions, etc
** [http://www.tldp.org/LDP/abs/html/ Advanced Bash-Scripting Guide] by Mendel Cooper
** my own page on [http://openwetware.org/wiki/User:Timothee_Flutre/Notebook/Postdoc/2011/11/07 R]
** [http://www.cplusplus.com/doc/tutorial/ C++ tutorial], a must-read (and a [http://www.mycplus.com/featured-articles/best-free-programming-courses-online/ list] of the best free C/C++ resources online)
** Python tutorials: for [http://www.tutorialspoint.com/python/index.htm everyone], [http://scipy-lectures.github.io/ scientists] ([http://www.sam.math.ethz.ch/~raoulb/teaching/PythonTutorial/index.html another]), [http://www.jchr.be/python/manuel.htm in French]
** [http://resrc.io/list/10/list-of-free-programming-books/ list] of free programming books
* '''Templates''': it is always rewarding on the long term to start any piece of computer software with a minimum amount of generic code (command-line options, help message, license, usage of gzipped files, running time, etc). But it's a pain to write all this every time, right? And often we know how to do something in one language but not in another. So below are my typical templates for any C++/Python/R/Bash program, as well as Beamer presentation.
** '''C++''': download the file [http://github.com/timflutre/quantgen/blob/master/myprogram.cpp myprogram.cpp], as well as [http://github.com/timflutre/quantgen/blob/master/utils_io.cpp utils_io.cpp] along with its header [http://github.com/timflutre/quantgen/blob/master/utils_io.hpp utils_io.hpp].
** '''Python''': download the file [http://github.com/timflutre/quantgen/blob/master/myprogram.py myprogram.py]
** '''R''': download the file [http://github.com/timflutre/quantgen/blob/master/myprogram.R myprogram.R]
** '''Bash''': download the file [http://github.com/timflutre/quantgen/blob/master/myprogram.bash myprogram.bash]
** '''Latex-Beamer''': download the file [http://github.com/timflutre/quantgen/blob/master/myslides.tex myslides.tex]
* '''Language-independent user documentation''': I'm a firm believer that it is necessary to add some user documentation, even  minimal, to any program. An easy way to do this is to simply generate such documentation from the "help" message, as long as it is "properly" formatted (see [http://www.gnu.org/s/help2man/ help2man]). The following commands work for any programming language:
<nowiki>
help2man -N -o myprogram.man ./myprogram
man ./myprogram.man
groff -mandoc myprogram.man > myprogram.ps
ps2pdf myprogram.ps myprogram.pdf
</nowiki>
* '''Benchmarking''':
** via the command-line: [http://man7.org/linux/man-pages/man1/time.1.html time] (see also [https://github.com/jhclark/memusg memusg])
** in R: [http://cran.r-project.org/web/packages/rbenchmark/index.html rbenchmark]


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About programming

  • Templates: it is always rewarding on the long term to start any piece of computer software with a minimum amount of generic code (command-line options, help message, license, usage of gzipped files, running time, etc). But it's a pain to write all this every time, right? And often we know how to do something in one language but not in another. So below are my typical templates for any C++/Python/R/Bash program, as well as Beamer presentation.
  • Language-independent user documentation: I'm a firm believer that it is necessary to add some user documentation, even minimal, to any program. An easy way to do this is to simply generate such documentation from the "help" message, as long as it is "properly" formatted (see help2man). The following commands work for any programming language:
help2man -N -o myprogram.man ./myprogram
man ./myprogram.man
groff -mandoc myprogram.man > myprogram.ps
ps2pdf myprogram.ps myprogram.pdf


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