Rank is number of repositories with that language created in a given year, so e.g., the languages with the most repositories created would be ranked 1, the second most 2, etc.
Source: I ran the query.
Source: I ran the query.
SELECT repository_language, COUNT(*) as num_repositories
FROM [githubarchive:year.2014]
WHERE type="CreateEvent"
AND IS_EXPLICITLY_DEFINED(repository_language)
GROUP BY repository_language
ORDER BY num_repositories DESC
LIMIT 10
The output is:
JavaScript 1273811
Java 930359
Ruby 769712
Python 630549
PHP 601101
C 473113
CSS 445501
C++ 355996
C# 183349
Objective-C 165102
Which doesn't completely match up with the order in the chart for 2014. (Positions for Python and PHP are reversed)
> The rank represents languages used in public & private repositories
The delta is due to private repository usage influencing the rank.