Re: Recruitment of young contributors (Re: Young people and computers)

2013-02-18 Thread Simon Paillard
Hi,

On Sat, Feb 16, 2013 at 12:16:41AM +, Moray Allan wrote:
 On 2013-02-09 21:46, Filipus Klutiero wrote:
[..]
 and the only data above simply shows the age of members. The graph is nice,
 but it doesn't show the age of members at the time they are recruited, and
 even less how that age changes with time. If we actually have such data, I'm
 sure I wouldn't be the only one to appreciate.

 I agree that it would be more interesting to see a graph of the
 average age of new DDs over time.  It ought to be possible to get an
 approximation of that by merging birthday data from db.debian.org
 with joining date data from nm.debian.org, though both of those data
 sets are incomplete.

 Without the numbers, my impression, shared with others, is that the
 age of new DDs has increased somewhat, as well as the average age of
 DDs increasing just from DDs getting older (but not quickly retiring
 from Debian).

http://people.debian.org/~spaillard/developers-age-histogramm/ actually also
contains historical data.

Fortunately, it also shows the average age increases slower than time: over
2012 (12 months so), average age increased by 2.7 months only.

Consider the figures below with caution, as it's computed from rounded to year
data, hence the big jump at year transition.

2010-04-11  mean = 33.1036  
2011-03-19  mean = 34.0884  
2011-05-13  mean = 34.0711  
2011-06-01  mean = 34.107   
2011-07-01  mean = 34.107   
2011-08-01  mean = 34.0982  
2011-09-01  mean = 34.0963  
2011-10-01  mean = 34.0879  
2011-11-01  mean = 34.1322  
2011-12-01  mean = 34.112   
2012-01-01  mean = 35.1168  
2012-02-01  mean = 35.0846  
2012-03-01  mean = 35.1131  
2012-04-01  mean = 35.0561  
2012-05-01  mean = 35.0864  
2012-06-01  mean = 35.0668  
2012-07-01  mean = 35.0569  
2012-08-01  mean = 35.052   
2012-09-01  mean = 34.9782  
2012-10-01  mean = 34.969   
2012-11-01  mean = 34.9706  
2012-12-01  mean = 34.8928  
2013-01-01  mean = 35.8746  
2013-02-01  mean = 35.8918  


-- 
Simon Paillard


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Re: Recruitment of young contributors (Re: Young people and computers)

2013-02-18 Thread Moray Allan

On 2013-02-18 09:26, Simon Paillard wrote:

On Sat, Feb 16, 2013 at 12:16:41AM +, Moray Allan wrote:

Without the numbers, my impression, shared with others, is that the
age of new DDs has increased somewhat, as well as the average age of
DDs increasing just from DDs getting older (but not quickly retiring
from Debian).


http://people.debian.org/~spaillard/developers-age-histogramm/ 
actually also

contains historical data.


Right, but only back to March 2011, and one entry for 2010.  I was 
thinking of a rather longer time-frame here.  
https://nm.debian.org/public/people mostly shows data back to 2000, 
which would be long enough to be interesting.


--
Moray


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Re: Recruitment of young contributors (Re: Young people and computers)

2013-02-15 Thread Moray Allan

On 2013-02-09 21:46, Filipus Klutiero wrote:

 How much of what? Your question may be interesting, but I don't know
what discussion you're referring to


Yes, it wasn't somewhere publicly archived -- that's why I thought it 
interesting to provide a summary.



and the only data above simply
shows the age of members. The graph is nice, but it doesn't show the
age of members at the time they are recruited, and even less how that
age changes with time. If we actually have such data, I'm sure I
wouldn't be the only one to appreciate.


I agree that it would be more interesting to see a graph of the average 
age of new DDs over time.  It ought to be possible to get an 
approximation of that by merging birthday data from db.debian.org with 
joining date data from nm.debian.org, though both of those data sets are 
incomplete.


Without the numbers, my impression, shared with others, is that the age 
of new DDs has increased somewhat, as well as the average age of DDs 
increasing just from DDs getting older (but not quickly retiring from 
Debian).


--
Moray


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