[Qgis-developer] Re: [Ubuntu] Launchpad download stats script

[Alex Mandel]

Ah that's an interesting site, but note how the data is collected.
"This site publishes the statistics gathered from report send by users
of the popularity-contest package. This package sends the list of
packages installed and the access time of relevant files to the server
weekly." So it's an opt-in sub sample of the population.

There is some useful data to be had here though, since its essentially a
subsample of the population we might be able to test against the ppa
numbers to estimate how many people who download actually use qgis on
regular basis.

#<name> is the package name;
#<inst> is the number of people who installed this package;
#<vote> is the number of people who use this package regularly;
#<old> is the number of people who installed, but don't use this package
#        regularly;
#<recent> is the number of people who upgraded this package recently;
#<no-files> is the number of people whose entry didn't contain enough
#        information (atime and ctime were 0).
#rank name                            inst  vote   old recent no-files
4147  qgis                            6979   803  5903   271     2

I read this as 12% of downloaders use on a regular basis, of course that
may actually be higher for the ppa, since it takes extra work to enable
the ppa. It's also unclear if the ppa is included in this sampling method.

Thanks,
Alex

On 12/11/2010 02:14 AM, johan.vandewauw at gmail.com wrote:
> For ubuntu you could also check how many installations you have with
> popcon.
> popcon.ubuntu.com
> http://ubuntu-popcon.43-1.org/cgi-bin/graph.pl?name=qgis
> 
> On Dec 11, 2010 3:35am, Alex Mandel <tech_dev at wildintellect.com> wrote:
>> Question came up today of how many QGIS users are there. Since the
> 
>> downloads happen from at least 4-5 major sites
> 
>> (kyngchaos,osgeo4w,launchpad,elgis,qgis.org) of which only one is
> 
>> directly a QGIS server the numbers are obviously short.
> 
> 
> 
>> Doing some digging there's a new api addition for launchpad that lets
> 
>> you get the data (soon to show up on the web interface too). The stats
> 
>> aren't quite there yet, pending full web log scans on launchpad's side
> 
>> but I wrote script this afternooon that is ready to start pulling the
> 
>> data as soon as it's there. Example csv output is up to, just with
> 
>> obviously wrong numbers.
> 
> 
> 
>> http://bazaar.launchpad.net/~wildintellect/+junk/launchpadapi-examples/files
>>
> 
> 
> 
>> Inspiration was from this ticket
> 
>> https://bugs.launchpad.net/soyuz/+bug/139855
> 
> 
> 
>> Just thought this might be of use to others. QGIS team, Tim and I talked
> 
>> about working this python script into the Django site so we can list the
> 
>> number of Ubuntu downloads anytime we want and aggregate it with other
> 
>> stats we have.
> 
> 
> 
>> Thanks,
> 
>> Alex
>