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Statistics point of view



Episode submitted by Jade_T on Sun Aug 28 18:12:16 2011
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This makes me wonder how many days it takes the average branch to be responded to by someone other then the author. The large number didn't surprise me, as this is the inherent nature of branches.

Branches being responded to by a different author then the parent happens 41% of the time in the archive. Note that this number can never reach 100%, as each response trying to plug an un-responded hole actually creates a hole of its own.

Of these branches responded to, the average number of days before a response is 259 days. The largest gap between first post and response has been 3413 days. An example branch follows:
http://transform.to/~zach/cgi-bin/fbstorypage.pl?page=020328214648x&path=nospamstory



For any geeks wanting to double check my work:
SELECT AVG(TotalDays) AS AverageDaysToWait
FROM
(SELECT TOP (100) PERCENT FBP.BranchAddress, FBP.Author, FBP.SubmitDate, MIN(FBR.SubmitDate) AS FirstResponse, DATEDIFF(DAY, FBP.SubmitDate, MIN(FBR.SubmitDate)) AS TotalDays
FROM FictionBranches AS FBP INNER JOIN
FictionBranches AS FBR ON FBP.BranchAddress = FBR.ParentBranchAddress AND FBP.Author FBR.Author AND
FBP.SubmitDate '1/1/1995')
GROUP BY FBP.BranchAddress, FBP.Author, FBP.SubmitDate, FBR.SubmitDate
ORDER BY TotalDays DESC) AS derivedtbl1

AverageDaysToWait: 259 days

Notes:
SubmitDate > '1/1/1995' //Some dates are defaulted to 1970 due to parsing errors
SubmitDate IS NOT NULL //Some dates are null due to changing style of urls, happened in 2002
FBP.SubmitDate D
These locations where data was missing accounts for 12% of branches that should be a part of these statistics.

30058 total branches
14182 branches have children with a different author then the parent
12458 branches have the above criteria and have correctly parsed submit dates


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