A commenter asked about whether I could take the data from this post and look at trends over time. Â The answer, of course, if yes! The statistic of interest here is median absolute deviation (MAD), which is a measure of variability. Â In this case, we’re calculating a MAD value for each skier and each season […]
Tagged biathlon, trend, variability, variation, xcAnother guessing game, this one based on a misunderstanding of a previous one. Â This time, I’ve graphed FIS points vs. date for five skiers up to an Olympic race where they will all race against each other and finish in the top five. Â Your job is to identify the medalists and for bonus points the […]
Tagged mystery skier, predictionThe week in brief: A quick post about how much more volatile biathlon racing is than XC, due to the influence of shooting, of course. Â I probably didn’t explain the actual statistics very clearly in that post, so if you found it confusing, check out the comments. Â Also, I’ll follow up on commenter Bolle’s question […]
Tagged week in review, word cloudCan you name a Polish men’s cross country ski racer? Â Hmmm. Â Poland has certainly been a one woman show of late, thanks to Justyna Kowalczyk. Which makes the following graph (a continuation of the graphs in this post) not terribly surprising: So here are some Polish men for you: Janusz Krezelok and Maciej Kreczmer. Â Who […]
Tagged Age, Germany, justyna kowalczyk, PolandI sort of just stumbled across these graphs accidentally. Â If there’s a point to them, it might be that this is what happens when you have a small ski team that manages to produce a really, really fast skier (or two). You hold on to them for as long as humanly possible. First up, Estonia. […]
Tagged Age, Estonia, FranceYes. That whole shooting bit. Â Tricky, isn’t it? So maybe a bit more discussion would be good. Â This graph shows the distributions of the median absolute deviations (MADs) by athlete and season, for those athletes who competed in at least five major competitions in that season. Biathletes, due to wild swings in shooting performance, are […]
Tagged biathlon, variability, xcHappy October everyone! Â Can’t you just smell the ski season around the corner? Previously on Statistical Skier: We took a look at the quality of OPA Cup and Scandinavian Cup (sort of a minor league race series for the World Cup) races as measure by the FIS points awarded to the top skiers at those […]