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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
CSDb: quantify me
CSDb-based quantitative analyses of the C64 Scene
http://www.xentax.com/?page_id=235 |
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
Okay, just briefly started to do some more analyses of the data in CSDb.
http://www.xentax.com/?page_id=265
CSDb is heavily biased by Germans hehe :P
Seriously, there is still much we can learn. |
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tlr
Registered: Sep 2003
Posts: 1787 |
Quoting Mr. Mousehttp://www.xentax.com/?page_id=265
CSDb is heavily biased by Germans hehe :P
Maybe that's no error?
Germany has a wastly bigger population than, say Sweden.
You could try to correlate this with demographics of the various periods.
How many in the age 13-18 in different countries at a particular period of time, etc...
Birthrate might be useful.
Maybe there is research on home computer market share per country?
Interesting work btw. Keep going! |
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
True, correlating it with population statistics is on my mind as well. I don't doubt that there will be many people from Germany that set up groups, it would be logical : more people,more groups. It is then all the more interesting to look at groups-per-capita and which country then tops the list. Also, I would expect there are much more groups in the US than listed at CSDb, it could suggest that CSDb is very Non-US oriented. |
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
To use the example you mentioned: In 1989 the German population was about 79 million, and 44 groups were formed according to CSDb. The Swedish population was about 8.5 million that same year, and 18 groups were formed.
This results in 2.1 groups per million in Sweden, and 0.5 groups per million in Germany that year, a ratio of 3.8 (2.1/0.5) in favour of Sweden. |
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chatGPZ
Registered: Dec 2001
Posts: 11350 |
also in 1989, the number of US groups worth mentioning was probably around 10 :) |
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tlr
Registered: Sep 2003
Posts: 1787 |
Quote: To use the example you mentioned: In 1989 the German population was about 79 million, and 44 groups were formed according to CSDb. The Swedish population was about 8.5 million that same year, and 18 groups were formed.
This results in 2.1 groups per million in Sweden, and 0.5 groups per million in Germany that year, a ratio of 3.8 (2.1/0.5) in favour of Sweden.
The density of c64's in Stockholm was pretty high in 1987. I'd say maybe 1 in 5 had a c64 in my class, maybe more.
At that time in my school of 800 students there were several active "sceners" (the term wasn't used at that time).
I don't know how many schools there were at that time, but it must have been quite a few. |
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
Okay, I've updated the page http://www.xentax.com/?page_id=265
with some updated figures. I've gotten some more Found dates based on reparsing. Also, I've uploaded a figure on the total number of Groups by Base Country. Top 5:
1. Germany (1189),
2. Sweden (483),
3. The Netherlands (401),
4. United States (387) and
5. Denmark (366).
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
That graph that shows the Founded date by Base Country in time gives an interesting glimpse in how the international dynamics may look like. Some countries had early booms in groups founded between 1982 and 1986, like Germany, Sweden and Denmark. Sweden had two peaks, in 1987 and 1989, the UK's founding era seems to be between 1986 and 1989 only, the Dutch lifted off from 1985 to peak twice in 1988 and 1989, while the US peaked also twice, in 1988 and 1991. Germany was at its single peak in 1989, climbing from 1982 on. Denmark had a single peak in 1987.
Also look at Poland, they were there in the beginning in 1987, dropping to almost no new group in 1990, but again having a second life, peaking again at 1995.
It is a pity that only 30% of groups (1747 out of 5802) have the Found dates filled in. It may look a little different when that was filled in. I will try and use an alternative less-robust indicator. |
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Mr. Mouse
Registered: Dec 2001
Posts: 235 |
Some more, and by the C64 God it is interesting.
http://www.xentax.com/?page_id=265
The last figure looks at the number of releases per year by CSDb Group pages. For some reason, the number of releases in the figure presented by CSDb in the ( ) at that page is off when comparing with the actual releases listed thereafter, but the differences are small. That's not the interesting part.
That is the figure itself. It shows that 6 countries are responsible for ~ 75% of the number of releases listed in CSDb: Germany, The Netherlands, United Kingdom, Sweden, United States and Denmark. Those countries reached the magical value of 1000 releases per year at any one year.
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