nate33 wrote:payitforward wrote:One more thing...
NatP4 wrote:...his advanced numbers are absolute garbage....
Neither of you can explain what "advanced numbers" are. Or how "advanced numbers" are calculated.
Feel free to lay out the formula for any "advanced number" you comprehend. I don't mean parrot some tout's claim, I mean provide the method.
But, you can't. & that's ok -- you want to know why it's ok? Because there are no such things as "advanced numbers."
This is a rather ridiculous criticism.
Advanced numbers are numbers that utilize on/off data and player tracking data above and beyond what you see in a traditional box score. Some advanced number systems are more complicated than others based on the regression techniques used. But the idea that one has to understand every mathematical step in the calculation in order to use the metric is absurd. Even if it's a "black box", that doesn't mean the black box can't pump out useful information.
No statistic is perfect (even your precious Wins Produced), but if you look at an advanced number method ranking of top players, and they pass the smell test for you based on what you see when watching games, then it's probably a pretty good metric to consider when evaluating a player. Certainly most NBA teams utilized advanced numbers, some of the most common being PIPM, BPM and RAPTOR.
When someone points out that Kuzma's "advanced stats" aren't as impressive as his box score stats, that's a valid criticism. It doesn't mean that one should conclude with certainty that Kuzma isn't as good as his box score numbers suggest, but it's a data point. One of the main problems with with on/off regression analysis is that it takes a lot of data, often multiple seasons, to really eliminate the noise. I'd say we are still well within the "noisy" range of the on/off data for Kuzma on the Wizards.

-- well, I appreciate you at least using the word "rather"....
1. "Wins Produced" is neither "precious" to me nor an "advanced number." In the end, it's just a way of weighting the box office stats that, at the team level, account 100% for wins & losses in a way that statistical regression tells you is right, & then seeing who accounts for what part of those stats.
2. Of course that method has an inherent limitation -- it fails to account for effects of interaction between players. I.e. it's not "reality," it's an analysis of reality.
3. No one in his right mind compares an analysis with reality. Instead, you just compare it to other analyses, from which you can learn which one gives you the results closest to what actually happens & under what circumstances it does better or worse.
4. Neither you nor anyone here -- or anywhere as far as I know -- can assess the relationship between so-called advanced numbers, e.g. RAPTOR, & wins & losses.
Read that last sentence carefully. It's either true or it's false. If it's true, then I'm right: "advanced numbers" are baloney. If it's false, then I'm wrong about e.g. RAPTOR.
Can you show either one? Can you provide an actual correlation of any kind between, e.g. on the one hand the sum of RAPTOR numbers for a team's players across their season of minutes on the floor & on the other hand that team's win-loss record?
You can't, nate -- but, obviously, that's not the problem. The problem is that
the people who invented these numbers (RAPTOR, etc.) can't do it either.
Of course, I could simply be ignorant. Like most people, there's a lot more I do not know than the sum of what I do know.
IOW, all you have to do is show me where these folks actually have described this correlation. I'd be happy if you did. I don't argue with valid mathematics or numerical analysis.
But, until you do, it's irrelevant to produce any other arguments in favor of these numbers. It's irrelevant, for example, to point out that teams "use" these numbers. After all, we have no idea
how they use them, do we? Not to mention that people use all kinds of meaningless techniques to do all kinds of things.
&, btw, no you cannot use a black box to gather useful information. Period. Not possible. If you could, it wouldn't be a black box. I'm surprised this isn't obvious to you.