RownhamHill said:
. . until you completely lost me here. Which order of magnitude is that, and what is the test you've performed to quantify it? Or did you just observe a significant difference between the two data sets, and apply your own best guess as to an explanation?
The order of magnitude difference in probability between dozens of riders slowing down and one rider speeding up. I really don’t think statistics are necessary to establish that.
So basically you agree with me completely?
I’m just saying the increase in probability is not 20%.
Wait you just said it was literally orders of magnitude more likely it was. . . oh well. But again, you seem to be agreeing with me again, so I won't quibble too much.
I said it was orders of magnitude more likely that the change is in Froome’s speed, not the peloton’s. That’s completely different from the question of how much Froome’s power changed.
Sorry you've lost me here, but what I understand you doing here is essentially shaving off some of the difference between the times to model some slowing by the rest of the field? Is that right? And then what's left shows Froome's increase (sorry if I've completely missed the point here). I don't want to sound stupid, but what if you 'adjusted' the data differently? Could you show more or less difference depending on the arbitrary adjustment you choose to make? And as the adjustments are by definition arbitrary, doesn't that rather speak to the inadequacy of the model in differentiating between the causes for the actual observed contraction in relative times? As I say I'm not entirely sure I've followed your purpose here, so apologies if I've missed your point entirely.
I’m showing that the probability of even a fairly small decrease in peloton speed is very unlikely. If I had not adjusted the data, the difference in Froome’s times and power would be even larger--a point I emphasized in the original post. The adjustment was not arbitrary, it's the kind of thing statisticians do all the time.
So you're saying because he's tall, he must by definition have been going all out in TTs from the start of his career? I don't know if that's true or not, but regardless, I'm pretty sure that the original data is silent on the question of 'tall rider's propensity to ride TTs at 100%', so in that sense, from the data presented we can't rule out the possibility that his team duties and instructions from the DS might have affected his performance, not withstanding his height.
Again, you're twisting my words, I didn't say that. I’m saying his height would suggest TTng would be his strength, which would make it even more unlikely that if he were good at them this would go unnoticed.
But describing the relative difference in numbers (as SiC), and finding the difference is significant as you've added (who'd'a'thunk that eh?), and then asserting that we think the only plausible explanation for that is a massive increase in ftp related to drug use doesn't, in a scientific sense, really take us any further than the hog posting video of him weaving up the road in that giro stage. But it does wrap your own assertions and gut feelings in the shiny authority of being 'scientific' (even though the science hasn't done anything other than quantify the improvement), and that, in my opinion, is an abuse of the spirit of science as a concept, and it is that abuse (that, I would argue, actively harms trust levels in science in society) that I am criticising.
Again, you are putting words into my mouth. I never in the entire post mentioned doping. You just assume because I'm arguing that Froome was stronger after 2011, I must be claiming this is proof of doping. Even though you yourself, at the end, also admit you accept that Froome is stronger. All my post did was use statistics to argue for a conclusion which you now say you accept. Having accepted that, you are left with arguing that that doesn't prove he was doping--again, an inference I never made--with no other explanation for the difference in performance except he wasn't trying his hardest before.
You know nothing about my gut feelings, certainly I didn't express them in that post, and the fact that you would imply that these feelings are being used to support a conclusion which again I never made does nothing at all to support your contention that you are being objective, acting in the true spirit of science. I think your real objection, like many others on this forum who try to support suspicious riders, is that when people draw conclusions on the basis of preponderance of evidence. But this isn't a murder trial, where one must be proven guilty beyond a reasonable doubt. This is a forum, where it's entirely reasonable to form opinions based on preponderance of evidence. If you want to remain agnostic on these issues, that's your prerogative. But as soon as you challenge arguments that suggest one conclusion over another, you are in effect taking a stand, and this thread is about the evidence that that stand is not supported by the preponderance of evidence.
FoxxyBrown1111 said:
What is more suspicious?
Arsenal London consistently being around the top of the league year round, or Team XYZ winning 21 games in a row, but losing all other games before and after, even to the point of falling out of the top league?
Which is more suspicious?
A rider with a prior history of winning climbing stages and a top 10 in the TDF, a team leader expected to contend in a relatively weak field, winning the Vuelta, or a rider with absolutely no background as a contender, not even a team leader, about to lose his contract because no results, taking a very close second in the Vuelta, which he would have won if he had gone in as team leader?
Suppose Horner, recovering in time from his 2011 TDF crash, had competed in the Vuelta that year. Who on the entire planet, going into that race, would have bet that Froome would finish ahead of Horner? If Horner’s palmares as a racer are so unimpressive that winning a Vuelta in 2013 is considered a bigger surprise than Froome almost winning two years earlier, why is it that he would have been a huge favorite to finish ahead of Froome in that earlier race?
Stop being so selective, Foxxy. They’re both suspicious as he!l.