Re: Statistics on nm.debian.org don't add up

```On Thu, Jan 25, 2001 at 05:59:43PM -0500, David Z. Maze wrote:
> The "aggregate statistics" section on the nm.debian.org front page
> don't make any sense.  I've found the times in the "Awaiting DAM
> Approval" line questionable, at best (every time I've looked in the
> past week or so, the mode waiting time has been 2 days, and an average
> of 29 just doesn't seem right either).  More noticably and concretely,
Mode is a problem because it is difficult to measure it accurately.
What happens if there are two maximums, or three.
You'll find a skew between mode and average due to most people going
through the process quickly, however there are those that wait a long
time.

> the current numbers for "Waiting for AM to Confirm" are impossible:
>
> Count: 7
> Mode: 0
> Median: 0
> Mean: 2
> Maximum: 100
>
> So this means that more entries are 0 than any other value, and that
> in a sorted list 0 is the middle value.  (So at least four people have
> been waiting zero days here.)  The mean means that the sum of all of
> the wait times is ~14 days, modulo rounding error.  This in turn means
> that it's impossible for any single wait time to be 100 days.  (Unless
> there's a negative wait time involved, which would solve the
> statistical mystery but seems very odd in its own right.)
"count" is what is happening right now. Right
now there are 7 people in the queue.
The wait times are based upon what has happened in the last two weeks.
In the last two weeks most (mode) people have wait 0 days.  It looks
like a very small number (mean close to 0) have waited longer.
sense to base statistics on what is happening in the queue at that time.

> (If the set of wait times was {0, 0, 0, 0, 0, 0, 100}, it would meet
It's more like {0,0,0...........100}. Most people accept and contact
the applicant on the same day, which is what mode tells you.

--
Craig Small VK2XLZ  GnuPG:1C1B D893 1418 2AF4 45EE  95CB C76C E5AC 12CA DFA5
Eye-Net Consulting http://www.eye-net.com.au/        <csmall@eye-net.com.au>
MIEEE <csmall@ieee.org>                 Debian developer <csmall@debian.org>

```