Comments on: Featured Add-ons Rotation for July 2008

By: Jay

Jay — Tue, 29 Jul 2008 19:22:23 +0000

Thanks Basil!

By: bhashem

bhashem — Fri, 25 Jul 2008 15:53:51 +0000

@S: I’ve previously blogged about how the retention rate is calculated @ http://blog.mozilla.com/basil/2008/05/30/rotation-of-featured-add-ons-on-amo/. It’s only a proxy calculation, an approximation, I use active users divided by downloads for a selected period of time.

By: S

Fri, 25 Jul 2008 12:58:58 +0000

Basil, how do you calculate the retention rate?

By: bhashem

bhashem — Sun, 13 Jul 2008 02:31:35 +0000

@Jay: Sorry for the delayed response on this, I must have missed it. The range this time around was 4.5% to 34.9%

By: Jay

Jay — Fri, 04 Jul 2008 17:29:29 +0000

basil, in a previous post you posted that the retention ratio ranged from 9.5% to 48.0%. if you can share, what was the average in this go around? thanks in advance!

By: bhashem

bhashem — Wed, 02 Jul 2008 21:22:59 +0000

@Alfred, that bug that you point to has to do with the default ordering and display of the recommended list - not the accuracy of the stats.

By: Alfred Kayser

Alfred Kayser — Wed, 02 Jul 2008 10:01:50 +0000

Note that statistics on usage of themes (and other extensions) is still not right on AMO, so if these are used for this rotation, the rotation is then also flawed…
See https://bugzilla.mozilla.org/show_bug.cgi?id=291413