Data generated on Wed Feb 27 22:20:08 2008
Welcome to LUI. This page is a compilation of various sources of data
concerning programming language usage. Instead of intertrepeting,
it simply provides a few metrics that might be useful to others
considering the question of language "popularity".
LUI is generated by a small and simple framework written in
Perl. It can easily be extended or modified. The source can be
downloaded here (zip).
Raw data for some or all of the below metrics can be downloaded in CSV format:
raw.csv
GoogleFileTypes
Uses a "filetype" directive in Google web search. Gives an indicator of the
number of files in a particular language on the web. Not only code files, but
dynamically served pages written in that particular language, e.g.
http://somefarmingdomain.com/index.pl is probably a Perl script serving content
for a farming interest. Note that some filetypes don't denote a particular
language, e.g. aspx files could be VB, C#, or even Perl, although it is most
likely to be one of the Microsoft languages.
NormalizedGeneralSearch
Similar to the TIOBE index, this searches for the terms "[LANGUAGE]
programming" in several search engines and returns a normalized ranking for
each language in the index.
GoogleCodeSearch
Returns results from
Google code search. Uses the
lang: directive, which returns files written in a given
language from within archives, SVN, and standalone.
(Note: If the Ruby,
Python, or C# numbers look low, this is because Code Search tends to flake out
every once and a while, and these languages suffer the most.)
SourceForgeProjectLangs
Number of projects in a given language on SourceForge.
OhlohNetStats
Looks at language statistics from
ohloh.net
and makes comparisons. (ohloh has a very nice page showing graphical statistics
for their numbers. It can be viewed
here.)
The "/per" columns below show the ratio of the given column to the number of
projects.
