Re: Graphing Debian Lists

2001-09-21 Thread Gerfried Fuchs
Hi!

[Cc me on replies, I'm not subscribed]

On Thu, Sep 20, 2001, Martin Schulze wrote:
 Gathering data happens all 30 minutes and I've let it run for a couple
 of days before making this annoncement, so there are some data to
 show.

 It looks strange that it seems that debian-devel-announce seem on the
first look to have had no subscribers before you started.  On the second
look one sees that the bottom of the image is not zero.  Could you
please change it that it has the zero-point in the graph so the graphs
can be looked in a _real_ manner and are not some hey - look at that
curve! graphs?   That's the first big lies that any statistic tries to
make, and we shouldn't do that, IMHO.

 Even you might note on the most lists then just flat lines it makes
more sense and doesn't leave the people like Hey, they just seem to
have started that list, there is a high flow of subscritions in it...

 Just a thought.  I like the graphs very much.  It's meant constructive,
not destructive.

 Thanks,
Alfie
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Re: Graphing Debian Lists

2001-09-21 Thread Martin Schulze
Wichert Akkerman wrote:
 Previously Marcelo E. Magallon wrote:
   The graphs are indeed nice, what did you use to make them?
 
 The graphs say `rrdtool', which is a pretty good hint :)

Indeed.

Here's the source for the thing.

http://cvs.infodrom.org/murphy/rrd-update?cvsroot=Infodrom-Tools

Regards,

Joey

-- 
Let's call it an accidental feature.  --Larry Wall

Please always Cc to me when replying to me on the lists.




Re: Graphing Debian Lists

2001-09-21 Thread Martin Schulze
Gerfried Fuchs wrote:
 Hi!
 
 [Cc me on replies, I'm not subscribed]
 
 On Thu, Sep 20, 2001, Martin Schulze wrote:
  Gathering data happens all 30 minutes and I've let it run for a couple
  of days before making this annoncement, so there are some data to
  show.
 
  It looks strange that it seems that debian-devel-announce seem on the
 first look to have had no subscribers before you started.  On the second
 look one sees that the bottom of the image is not zero.  Could you
 please change it that it has the zero-point in the graph so the graphs
 can be looked in a _real_ manner and are not some hey - look at that
 curve! graphs?   That's the first big lies that any statistic tries to
 make, and we shouldn't do that, IMHO.
 
  Even you might note on the most lists then just flat lines it makes
 more sense and doesn't leave the people like Hey, they just seem to
 have started that list, there is a high flow of subscritions in it...

That's not giving us anything.  It doesn't draw a picture of the
subscribe frequency, nor does it provide a better view of the number
of subscribers.

In fact, the graphs would be quite flat and uninteresting.  The first
version on murphy had them, since the rrdtool in potato was too old.
As an example check out these two graphs of debian-announce.

http://people.debian.org/~joey/stuff/debian-announce-distabs-month.png
http://people.debian.org/~joey/stuff/debian-announce-distabs-normal-month.png

Regards,

Joey

-- 
Let's call it an accidental feature.  --Larry Wall

Please always Cc to me when replying to me on the lists.




Re: Graphing Debian Lists

2001-09-21 Thread Gerfried Fuchs
Hi again.

On Fri, Sep 21, 2001, Martin Schulze wrote:
[zeropoint or not - that's the question]
 That's not giving us anything.  It doesn't draw a picture of the
 subscribe frequency, nor does it provide a better view of the number
 of subscribers.

 Well, it _does_ draw a picture of subscribe frequency, related to all
the people already subscribed.  If you want a picture of just subscribe
frequency, than make that:  With the zero-point in the middle, and
subscriptions add and unsubscribes substract from there.  A graph for a
statistic is worth nothing if it doesn't have the zero point in it.
First unit statistics lesson.

 In fact, the graphs would be quite flat and uninteresting.  The first

 But it would be a real graph.

 version on murphy had them, since the rrdtool in potato was too old.
 As an example check out these two graphs of debian-announce.
 
 http://people.debian.org/~joey/stuff/debian-announce-distabs-month.png
 http://people.debian.org/~joey/stuff/debian-announce-distabs-normal-month.png

 These doesn't seem to be the first graphs with the zero in it.  So the
still offer a false view of the state.

 I don't exactly know whom you want to impress with those false graphs
or what you want to be able to see from it - but the current state seems
to miss that, IMHO.

 Just my thoughts, nothing personal, as you should know.  Go on like you
like, personally I see it in this way quite useless.

 Alfie
-- 
 You never learn anything  |   /\   ,'~~.
   by doing it right.  |  / chaos \  alfie.ist.org   |o ?~\
   -- unknown  |  \inside!/  [EMAIL PROTECTED]  /_   ~\
   |   \_/   \__,~ \




Re: Graphing Debian Lists

2001-09-21 Thread Jules Bean
On Fri, Sep 21, 2001 at 10:38:48AM +0200, Gerfried Fuchs wrote:
 subscriptions add and unsubscribes substract from there.  A graph for a
 statistic is worth nothing if it doesn't have the zero point in it.
 First unit statistics lesson.

Rubbish.  The correct lesson is to learn to always look at the scale
before drawing conclusions. Once you've learnt that, graphs without a
zero point have a place: they show more details. There is certainly no 
law against them.

Zero-point graphs would make it easier to compare the different
graphs, certainly, if that's what one wants to do.

Personally the thing that jars me is the inconsistency: some graphs
are scaled so that their vertical variation is more-or-less full
range, whilst others take only a small percentage of the vertical
height.  But there is a limit to the amount of time it's fun to spent
meddling with rrdtool options...

Jules




Re: Graphing Debian Lists

2001-09-21 Thread Nils Lohner
On Thu, 20 Sep 2001 19:24:34 +0200, Martin Schulze wrote:
Dear Developers!

I have taken the opportunity to create some nice (or not?) graphics of
the mailing lists that Debian serves on lists.debian.org.  I have
analysed both the posting frequency and the total list of subscribers.

Nicer looking than the ones I did last year... maybe you can take over
the concept of the index page from mine and stick your graphs behind it
since they're better?

They've been available from the lists page for a while and are at:
http://lists.debian.org/stats/

Regards,
Nils.



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Re: Graphing Debian Lists

2001-09-20 Thread Marcelo E. Magallon
 Martin Schulze [EMAIL PROTECTED] writes:

  I have taken the opportunity to create some nice (or not?) graphics of
  the mailing lists that Debian serves on lists.debian.org.  I have
  analysed both the posting frequency and the total list of subscribers.

 The graphs are indeed nice, what did you use to make them?

-- 
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[EMAIL PROTECTED] | Signify v1.07.  For this and other cool products,
| check out http://www.debian.org/




Re: Graphing Debian Lists

2001-09-20 Thread Wichert Akkerman
Previously Marcelo E. Magallon wrote:
  The graphs are indeed nice, what did you use to make them?

The graphs say `rrdtool', which is a pretty good hint :)

Wichert.

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