Ive noticed a few discrepancies with the graph..

How come on the 2-day graph, the scale for decline goes 10300 to 10800
while on 5-day graph the range is 10200 to 10800.  The accept scale is
0-100 on 2-day but 0-120 on 5-day.  The upshot is that the 'accepted'
value is 99.8% of the full range, while the 'declined' value is either
62% of the full range (or 75% in the case of 2-day graph).  This has the
affect of showing the accepted numbers looking higher, while infact,
visual inspection of the graph shows the graphs working the other way.

The top 2-day graph, shows the decline scale starting above the accept
line for about the first 24hrs of the graph, but in the bottom graph
indicates that the acceptance rate is much higher with a significant
diversion in the lines, even though the numbers being represented are
equal.

If you want to represent these important figures in statistics, can you
at least use a common scale to avoid distorting peoples views of the
figures?  Using deceptive graphing methods was a trick we were taught
back in school as a child.  It doesnt make your figures look any better,
it just makes those educated enough to pick your graphs faults, not
value any of it at all.

David


On Sun, 2011-04-17 at 00:06 -0500, Toby Murray wrote:
> I was actually thinking about doing that but went to bed last night
> after getting the first one up. At that point the point I believe the
> start point for the data was just barely off of the first graph. But I
> just added a 5 day graph. I will extend it as I get more data to show
> the long term trend.
> 
> Toby
> 
> 
> On Sat, Apr 16, 2011 at 11:48 PM, Eugene Alvin Villar <sea...@gmail.com> 
> wrote:
> > Could you create a graph that shows the graph since you started
> > collecting data in addition to or instead of just the last 48 hours?
> > :-)
> >
> > This graph is very informative.
> >
> >
> > On Sat, Apr 16, 2011 at 5:01 PM, Toby Murray <toby.mur...@gmail.com> wrote:
> >> Not sure if anyone else is already doing this but two days ago I
> >> thought it would be fun (maybe even useful) to graph the number of
> >> users who have accepted/declined the new license/CT in anticipation of
> >> the next phase going into effect on Sunday. I hacked together a quick
> >> & dirty script to use as a data source in the Zabbix instance I have
> >> set up at home. Zabbix is geared towards system monitoring so it is a
> >> little odd to graph something completely unrelated but it was
> >> available and easy to do and at the end of the day, a graph is a
> >> graph.
> >>
> >> Anyway, I didn't feel like sending out the URL to my private zabbix
> >> instance at home to the mailing list so I set up a cron job to
> >> periodically refresh a static image on a more legitimate server. It
> >> can be seen here:
> >>
> >> http://ni.kwsn.net/~toby/OSM/license_count.html
> >>
> >> Enjoy,
> >> Toby
> >
> 
> _______________________________________________
> talk mailing list
> talk@openstreetmap.org
> http://lists.openstreetmap.org/listinfo/talk



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