Hi Chemefreak/Leehar,
Please change the link in your OP for the Algorithm of 400 method to the below post, as it contains the clan rankings based on the complete clan war and clan league data set (Mar 29) on page 2.
viewtopic.php?f=438&t=140929&start=15#p3088157If you want, you can include the following description (or a summary of it) and the feedback I have gathered in your OP:
The reason I wrote the script that calculates rankings according to the Algorithm of 400 is because I read about what qwert was doing, did some research on how ELO is implemented, learned about the Algorithm of 400 / remembered about how GameKnot (online chess site) implements it, wrote several comments in qwert's thread and then just decided it might be interesting to implement it myself. I love mathematics, I'm a systems and information engineer, so I have a lot of experience developing and analyzing measurement systems. Our is a branch of engineering that does not deal with any particular physical science - only how to interpret numbers that might represent anything or nothing in the real world.
I realize the method is very similar to what jpcloet has done before and you can view my work as a continuation of that effort. My script takes a clan war results file as input and automatically:
1) Generates a ranking based on clan performance
2) Graphs performance over time
3) Provides information on how accurate the model is (how often a higher ranked clan beat a lower ranked)
4) Provides information on how the result of each clan war influences the overall rating of a clan
The best part is that it's all automatic, so you can change around the parameters (there are many) and instantly have it all recalculated.
Some feedback:
danryan wrote:I have to say, this is a very credible model from what I'm seeing so far. For one, it clearly shows what effect your input data has. Secondly, it removes all incentive for "farming" a clan. Lastly, it penalizes a clan (but not too severely) for inactivity, due to the decay factor. I'd like to hear jpcloet's take on it since he has put a lot of work into a lot of different models over the years to try and come up with a mathematical model.
GoldKnight wrote:Agreed, someone finally put some colorful pictures up so us peasants can understand...
It does seem like a pretty close representation of what the clan landscape is IMO. Where the hell have you been in the CLA the past year while we've been bickering over 40 different ranking systems?
josko.ri wrote:I very like this system of calculation, results are very reliable I think. decay idea is great.