Community Health

Number of comments per issue. Discussion is occuring openly - could also indicate level of agreement.

GHTorrent

SELECT avg(avg_num_comments), project_name
FROM
(
	SELECT count(comment_id) as avg_num_comments, projects.name as project_name, projects.id as project_id
	FROM msr14.issue_comments
		join issues on issue_comments.issue_id = issues.id
		join projects on issues.repo_id = projects.id
	GROUP BY projects.id, issues.id
) as comments_per_issue
GROUP BY project_id

Papers released in the academic literature that uses the metric.

Links to websites that add value to the understanding of the metric.

Authors of the metric page and authors who made significant changes.