2016 RAPM/RPM/etc. *Full 2016 RS + PS RPM & RAPM Updated 6/24*

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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#241 » by bondom34 » Sat Apr 9, 2016 7:52 am

lorak wrote:
bondom34 wrote:
SideshowBob wrote:
Nah, same problem as what Doc pointed out with my point, in that the regression should overcome this issue.

Wasn't this part of why Collison's numbers were so high though? I remember hearing it called "the Perkins effect" where he replaced Perk and that gave his numbers a bump. I have to see if I can find the article.


At first I thought what SideshowBob said, but I looked into the data and you might be onto something: (Collinson's rank in NPI RAPM among all players)

Code: Select all

YEAR   RANK   
2005   106   
2006   75   
2007   139   
2008   269   
2009   318   
2010   10   
2011   4   Perkins 17G
2012   32   Perkins 65G
2013   11   Perkins 78G
2014   15   Perkins 62G
2015   108   Perkins 51G
2016   189   


So on one hand Collinson did good or even very good before Parkins arrived, but on the other he was the most consistent year by year with Perk on the team. I'm not sure what to think about it, maybe it's just coincidence or other factors (for example Durant's development in 2010)? Were they even substituting each other?

Collison was Perk's backup for the most part. In 2012 they still had Nazr Mohammed and Collison was back up 4/5, but the following year Nazr was gone and Collison was primary with Thabeet playing maybe 10 mpg.

Depth:
http://www.basketball-reference.com/teams/OKC/2013_depth.html
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#242 » by ronnymac2 » Mon Apr 11, 2016 3:28 am

RSCD3_ wrote:
ronnymac2 wrote:I hate to say the same thing over and over, but I think this is important. What you're seeing with Draymond Green is a CENTER who is a credible DPOY who also shoots about 40% on a high volume of 3's, handles the ball, and playmakes to the tune of 7 assists per game. This has literally never been done before.

In basketball theory, Draymond Green is what a GM or scout or RealGM PC Board Member dreams of when trying to create the best 5-man unit imaginable.



Well I still wouldnt call him a full time center, he's more like a PF/C IMO, but that doesnt diminish his impact IMO as a center. I do feel though if he played 30+ mpg at exclusively center his impact would fall off more on defense, although he would have more time to accumulate the offensive advantage. He's very good at playing a small ball center for the warriors for like 20-25% of his time which is around 9 minutes per game (bballref's 15% seems a little low ) but I think anything much more than that is moving past a proper balance point


Very true. The Warriors do have the luxury of playing him at both spots because they have a diesel per-minute classic center in Andrew Bogut AND perfect forwards in the ball-handling/super defense Iggy and legit SF/PF Harrison Barnes.

I actually think Barnes goes under the radar. People say he's replaceable in their death squad lineup. Might be a limitation of my own imagination, but I don't see any other forward doing as good a job as he does in that specific role (not including LBJ, KD, KL).
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#243 » by SideshowBob » Tue Apr 12, 2016 3:09 pm

RPM Updated again. Top 6

Steph +8.92 (7.64/1.28)
Leonard +8.58 (4.07/4.51)
James +8.41 (5.86/2.55)
Green +8.27 (3.54/4.73)
Westbrook +7.89 (6.93/0.96)
Paul +7.84 (6.09/1.75)

Top 6 within 1.08 points of each other.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#244 » by Winsome Gerbil » Tue Apr 12, 2016 7:49 pm

SideshowBob wrote:RPM Updated again. Top 6

Steph +8.92 (7.64/1.28)
Leonard +8.58 (4.07/4.51)
James +8.41 (5.86/2.55)
Green +8.27 (3.54/4.73)
Westbrook +7.89 (6.93/0.96)
Paul +7.84 (6.09/1.75)

Top 6 within 1.08 points of each other.


One of the reasons I have grown more comfortable with RPM is because I don't believe numbers MAKE the sport. I believe they should reflect it. Its why PER, primitive that it is, is a pretty strong stat among main option players. The Top 50 players all time in PER are basically all in or going to be in the HOF. It will miss Shane Battier, but can spot the top guys.

And RPM here, while certainly not flawless (Kevin Love is 10th in the NBA, Jokic is 8th), still is going to match up with the All NBA teams pretty well.

The Top 6 in RPM listed above will all probably be on the 1st/2nd teams, the 4 guys most likely to join them are Durant (#9), Cousins (#11) Harden (#16) and Drummond (#29, the aberration because of positional concerns). The third team could easily be Lowry (#7), George (#13), Milsap (#12), Jordan (#15) and...well, I've been tagging Lillard. But his DRPM is so bad it yanks him all the way down to #84.

Anyway, 13 of the 15 likely All NBA guys are going to be in the Top 16 RPM, with only Jokic, Love, and part time Duncan at #14 missing out. That's pretty good accuracy, just missing out on a handful of top players (Lillard, A.D. (#67), Blake (#53), two of whom had bad years.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#245 » by tsherkin » Tue Apr 12, 2016 10:53 pm

Winsome Gerbil wrote:Anyway, 13 of the 15 likely All NBA guys are going to be in the Top 16 RPM, with only Jokic, Love, and part time Duncan at #14 missing out. That's pretty good accuracy, just missing out on a handful of top players (Lillard, A.D. (#67), Blake (#53), two of whom had bad years.


Is it, though? If you look at that list, what else do you see?

In descending order of ESPN RPM:

Steph: PER (1), WS48 (1), BPM (1), VORP (1)
Kawhi: PER (6), WS48 (2), BPM (4), VORP (7)
Lebron: PER (4), WS48 (6), BPM (3), VORP (3)
Draymond: WS48 (15), BPM (9), VORP (9)
Westy: PER (3), WS48 (5), BPM (2), VORP (2)
Paul: PER (5), WS48 (4), BPM (5), VORP (8)
Lowry: PER (15), WS48 (13), BPM (7), VORP (5)
Jokic:
Durant: PER (2), WS48 (3), BPM (6), VORP (6)
Love:
Cousins: PER (11),
Millsap:
George:
Duncan:
DAJ:
Harden: PER (8), WS48 (12)
PGasol: PER (19)
Rubio:
Butler:
Sullinger:
Middleton:
Frye:
Bogut:
Crowder:
Manu:
Aldrich:
Horford:
Marvin Williams:
Drummond:
Hayward:
Kemba:
Wall:
Ed Davis:
Brook Lopez: PER (18)
David West:
Mike Conley:
KG:
Boban:
Bosh:
Dirk:

So we're into the top 40 and we don't see Towns, the Brow, Isaiah Thomas, Demar, Klay, Iggy, Giannis, Aldridge, Gobert or Whiteside, which is an early question mark. BPM, VORP, WS48 and PER all start picking up Gobert, Wall, Paul George, Aldridge, Pau, Millsap, etc, etc. Each has its own question marks, of course, but I mean RPM isn't doing anything we haven't seen before. It's easy to pick up the top guys, basically all of these stats do that in one order or another. They also all, RPM included, have some boogly inclusions and exclusions.

I wouldn't be looking to confirm RPM's utility (or specific application) because it replicates what 30 years of other stats have done for us just yet.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#246 » by Rapcity_11 » Tue Apr 12, 2016 11:13 pm

ronnymac2 wrote:
RSCD3_ wrote:
ronnymac2 wrote:I hate to say the same thing over and over, but I think this is important. What you're seeing with Draymond Green is a CENTER who is a credible DPOY who also shoots about 40% on a high volume of 3's, handles the ball, and playmakes to the tune of 7 assists per game. This has literally never been done before.

In basketball theory, Draymond Green is what a GM or scout or RealGM PC Board Member dreams of when trying to create the best 5-man unit imaginable.



Well I still wouldnt call him a full time center, he's more like a PF/C IMO, but that doesnt diminish his impact IMO as a center. I do feel though if he played 30+ mpg at exclusively center his impact would fall off more on defense, although he would have more time to accumulate the offensive advantage. He's very good at playing a small ball center for the warriors for like 20-25% of his time which is around 9 minutes per game (bballref's 15% seems a little low ) but I think anything much more than that is moving past a proper balance point


Very true. The Warriors do have the luxury of playing him at both spots because they have a diesel per-minute classic center in Andrew Bogut AND perfect forwards in the ball-handling/super defense Iggy and legit SF/PF Harrison Barnes.

I actually think Barnes goes under the radar. People say he's replaceable in their death squad lineup. Might be a limitation of my own imagination, but I don't see any other forward doing as good a job as he does in that specific role (not including LBJ, KD, KL).


A guy like Pattrick Patterson could do as well I think. Batum as well. Maybe Jae Crowder.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#247 » by RebelWithACause » Tue Apr 12, 2016 11:20 pm

tsherkin wrote:
Winsome Gerbil wrote:Anyway, 13 of the 15 likely All NBA guys are going to be in the Top 16 RPM, with only Jokic, Love, and part time Duncan at #14 missing out. That's pretty good accuracy, just missing out on a handful of top players (Lillard, A.D. (#67), Blake (#53), two of whom had bad years.


Is it, though? If you look at that list, what else do you see?

In descending order of ESPN RPM:

Steph: PER (1), WS48 (1), BPM (1), VORP (1)
Kawhi: PER (6), WS48 (2), BPM (4), VORP (7)
Lebron: PER (4), WS48 (6), BPM (3), VORP (3)
Draymond: WS48 (15), BPM (9), VORP (9)
Westy: PER (3), WS48 (5), BPM (2), VORP (2)
Paul: PER (5), WS48 (4), BPM (5), VORP (8)
Lowry: PER (15), WS48 (13), BPM (7), VORP (5)
Jokic:
Durant: PER (2), WS48 (3), BPM (6), VORP (6)
Love:
Cousins: PER (11),
Millsap:
George:
Duncan:
DAJ:
Harden: PER (8), WS48 (12)
PGasol: PER (19)
Rubio:
Butler:
Sullinger:
Middleton:
Frye:
Bogut:
Crowder:
Manu:
Aldrich:
Horford:
Marvin Williams:
Drummond:
Hayward:
Kemba:
Wall:
Ed Davis:
Brook Lopez: PER (18)
David West:
Mike Conley:
KG:
Boban:
Bosh:
Dirk:

So we're into the top 40 and we don't see Towns, the Brow, Isaiah Thomas, Demar, Klay, Iggy, Giannis, Aldridge, Gobert or Whiteside, which is an early question mark. BPM, VORP, WS48 and PER all start picking up Gobert, Wall, Paul George, Aldridge, Pau, Millsap, etc, etc. Each has its own question marks, of course, but I mean RPM isn't doing anything we haven't seen before. It's easy to pick up the top guys, basically all of these stats do that in one order or another. They also all, RPM included, have some boogly inclusions and exclusions.

I wouldn't be looking to confirm RPM's utility (or specific application) because it replicates what 30 years of other stats have done for us just yet.


Towns isn't there, because his defense isn't up to sniff and his efficient scoring overrates his offensive impact.
Towns is amazing and will be amazing and have huge impact but right now, he isn't there.
How can so many people repeat this notion over and over again when it couldn't be further from the truth?
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#248 » by Doctor MJ » Wed Apr 13, 2016 2:47 am

So I had an idea relating to Green vs Curry:

What if Curry is the more impactful player when he really has to be, such as when playing against other elite teams, and Green just seems to have the edge because he grinds more consistently?

So I went and tallied up raw +/- totals for the Warriors against the other 6 teams with SRS's north of 3.
What I found:

Green +194
Curry +164

Green did play more minutes though so maybe that's biasing it. So normalized per 48 minutes:

Green +15.1
Curry +13.8

What if i bump the threshold to SRS > 5?

Green +19.3
Curry +15.0

In all seriousness, I'm trying to think of ways to explain apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Lift is not everything, not saying it is, but I have the issue that deep down I really feel like the answer has to be Curry and the objective data isn't anything to justify this gut belief.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#249 » by RebelWithACause » Wed Apr 13, 2016 3:27 am

Doctor MJ wrote:So I had an idea relating to Green vs Curry:

What if Curry is the more impactful player when he really has to be, such as when playing against other elite teams, and Green just seems to have the edge because he grinds more consistently?

So I went and tallied up raw +/- totals for the Warriors against the other 6 teams with SRS's north of 3.
What I found:

Green +194
Curry +164

Green did play more minutes though so maybe that's biasing it. So normalized per 48 minutes:

Green +15.1
Curry +13.8

What if i bump the threshold to SRS > 5?

Green +19.3
Curry +15.0

In all seriousness, I'm trying to think of ways to explain apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Lift is not everything, not saying it is, but I have the issue that deep down I really feel like the answer has to be Curry and the objective data isn't anything to justify this gut belief.


The difference comes from playing with weaker lineups for Curry. Unfortunately regression doesn't overcome this issue as well.

In 77 games they played together this season their playing time together makes up like 92 % of their entire playing time.

There was 1 game that Steph played without Green and 3 games Green played without Steph.

Per game they play only 2-3 mpg apart from each other.

I think people should stop thinking that this minuscule sample size is worth anything.
This is pretty much jumping the gun here.

PS: I think there should be at least ~5-6 mpg that players play apart from each other to say anything meaningful about differentiating their impact.
That should be about 500 minutes minimum in without the other guy. Just my view.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#250 » by bondom34 » Wed Apr 13, 2016 3:41 am

I'm starting to not feel insane for that thread a few weeks ago :lol:.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#251 » by Doctor MJ » Wed Apr 13, 2016 4:01 am

RebelWithACause wrote:
Doctor MJ wrote:So I had an idea relating to Green vs Curry:

What if Curry is the more impactful player when he really has to be, such as when playing against other elite teams, and Green just seems to have the edge because he grinds more consistently?

So I went and tallied up raw +/- totals for the Warriors against the other 6 teams with SRS's north of 3.
What I found:

Green +194
Curry +164

Green did play more minutes though so maybe that's biasing it. So normalized per 48 minutes:

Green +15.1
Curry +13.8

What if i bump the threshold to SRS > 5?

Green +19.3
Curry +15.0

In all seriousness, I'm trying to think of ways to explain apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Lift is not everything, not saying it is, but I have the issue that deep down I really feel like the answer has to be Curry and the objective data isn't anything to justify this gut belief.


The difference comes from playing with weaker lineups for Curry. Unfortunately regression doesn't overcome this issue as well.

In 77 games they played together this season their playing time together makes up like 92 % of their entire playing time.

There was 1 game that Steph played without Green and 3 games Green played without Steph.

Per game they play only 2-3 mpg apart from each other.

I think people should stop thinking that this minuscule sample size is worth anything.
This is pretty much jumping the gun here.

PS: I think there should be at least ~5-6 mpg that players play apart from each other to say anything meaningful about differentiating their impact.
That should be about 500 minutes minimum in without the other guy. Just my view.


So let me get this straight:

You believe you know the answer because of your analysis of the time when the two guys play separately.

Then you chastise me for even considering this data because of their being too little sample size to do a meaningful analysis of the time when the two guys play separately.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#252 » by RebelWithACause » Wed Apr 13, 2016 4:06 am

Doctor MJ wrote:
RebelWithACause wrote:
Doctor MJ wrote:So I had an idea relating to Green vs Curry:

What if Curry is the more impactful player when he really has to be, such as when playing against other elite teams, and Green just seems to have the edge because he grinds more consistently?

So I went and tallied up raw +/- totals for the Warriors against the other 6 teams with SRS's north of 3.
What I found:

Green +194
Curry +164

Green did play more minutes though so maybe that's biasing it. So normalized per 48 minutes:

Green +15.1
Curry +13.8

What if i bump the threshold to SRS > 5?

Green +19.3
Curry +15.0

In all seriousness, I'm trying to think of ways to explain apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Lift is not everything, not saying it is, but I have the issue that deep down I really feel like the answer has to be Curry and the objective data isn't anything to justify this gut belief.


The difference comes from playing with weaker lineups for Curry. Unfortunately regression doesn't overcome this issue as well.

In 77 games they played together this season their playing time together makes up like 92 % of their entire playing time.

There was 1 game that Steph played without Green and 3 games Green played without Steph.

Per game they play only 2-3 mpg apart from each other.

I think people should stop thinking that this minuscule sample size is worth anything.
This is pretty much jumping the gun here.

PS: I think there should be at least ~5-6 mpg that players play apart from each other to say anything meaningful about differentiating their impact.
That should be about 500 minutes minimum in without the other guy. Just my view.


So let me get this straight:

You believe you know the answer because of your analysis of the time when the two guys play separately.

Then you chastise me for even considering this data because of their being too little sample size to do a meaningful analysis of the time when the two guys play separately.


No Doc, I don't chastise you, Didn't mean to sound like that.
My personal explanation is randomness, not the lineups. Sorry for that, even though the lineup thing would be my next best explanation.
Don't you think this miniscule sample is way too small to interpret?

Another example:

Durant + Westbrook = 2086 minutes

Westbrook without Durant = 663
Durant without Westbrook = 492

That's around 6-7 mpg (twice as much) where they are playing apart from each other. And even that is really collinearity heavy.
Here it could start to draw conclusions, but even then the collinearity is real here.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#253 » by SideshowBob » Wed Apr 13, 2016 4:14 am

Just tweeted JE on updated multi-year RAPM & RPM/xRAPM
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#254 » by Doctor MJ » Wed Apr 13, 2016 4:29 am

RebelWithACause wrote:No Doc, I don't chastise you, Didn't mean to sound like that.
My personal explanation is randomness, not the lineups. Sorry for that, even though the lineup thing would be my next best explanation.
Don't you think this miniscule sample is way too small to interpret?

Another example:

Durant + Westbrook = 2086 minutes

Westbrook without Durant = 663
Durant without Westbrook = 492

That's around 6-7 mpg (twice as much) where they are playing apart from each other. And even that is really collinearity heavy.
Here it could start to draw conclusions, but even then the collinearity is real here.


Thank you for this response. I overreacted, thanks for being cool about it.

As far as the sample size being too small to interpret, let me emphasize I'm not saying "Green is more valuable than Curry", I'm just saying that I still can't find a chink in Green's +/- armor, and at this point it's been a couple years. At some point if the issue is noise, we should see that, and I'm not sure how long it makes sense to continue being confident that that "at some point" will actually occur.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#255 » by lorak » Wed Apr 13, 2016 7:20 am

RebelWithACause wrote:
The difference comes from playing with weaker lineups for Curry.


How do you know that?

Unfortunately regression doesn't overcome this issue as well.


The same question as above, because regression was made to do exactly that.

Per game they play only 2-3 mpg apart from each other.


That's one way to look at that, but it isn't completely correct approach in discussed context. Possessions matter, each of them individually and thus you should rather say, that Green has played 7 full games without Curry (and Steph 5 w/o Drymond). That's still not too big sample (however 12 games is often use to draw some conclusions), but with other evidence it's important piece of information.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#256 » by The-Power » Wed Apr 13, 2016 11:04 am

Doctor MJ wrote:In all seriousness, I'm trying to think of ways to apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Obviously I have noticed Green's edge in +/- as well and pondered on the reasons for it. Let me start off by proclaiming two fundamental things:

1. I do believe Green has superstar-level impact in his own right.
2. I do not believe that the data we have is just noise, it's real because we can see a pretty clear pattern.

So, what does this leave us with and how do I answer the question about impact as someone who is still in Camp-Curry? Well, there is one assumption to be made which we can't verify nor falsify but it's an assumption we need to make in order to have a viable discussion in the first place. The assumption would be: Curry's impact on his team's point differential is greater than Green's when both are on the court. Since they spend most of the time together on the court, this would make up for the majority of their raw +/- numbers and also greatly influence their RAPM. If the assumption is valid, this would mean that Green is being overrated to some extend by the +/- numbers due to playing next to Curry while Curry is being underrated relative to Green overall.

In this case, what we have to explain is Green's superioty when one of them is on the bench. This means mostly guesswork for us and while this isn't particularly satisfying I see no way around it.

1. Line-ups. I don't believe they explain everything, especially given the relatively small sample size everybody is aware of, but they mean at least something. The most eye-popping number with probably the most explanatory power is playing time with Klay Thompson. Green on/Curry off is a sample of 346 minutes, and Klay was on the floor for 297 minutes or 86% of the time. Curry on/Green off is a sample of 240 minutes, and Klay was on the floor for 106 minutes or 44% of the time. The difference is obviously huge and important as long as we assume Klay to have significant impact (which I do, although not at superstar-level). We also see some random outliers like Barbosa who - while only taking 30 TSA with Curry on the floor and Green on the bench, but given the sample size it factors in - shoots is incredibly ineffecient in this scenario (36% TS) and everybody who watches Barbosa play should know his style and it is 'hit or miss' most of the time, regardless of the teammates around him. Curry also played 24.5% of the time with either Varejao, Jason Thompson, McAdoo or Looney - all poor big men, especially on defense - while Green played only 8.6% (!) of the time with them. In other words: Green's replacements are worse overall than Curry's and this matters. We could go on but the first part if definitely more important than anything else we could potentially find.

2. Intensity. The key with Green on and Curry off is not only to maintain decent offensive efficiency but rather to keep up the defensive intensity. When Curry sits on the bench, the team knows that they must be focused defensively and take good shots on offense. In order to maintain offensive efficiency, the pace drops noticeably and the % of FGM assisted reaches an incredibly high level (76%). Having more playing time with Igoudala and Livingston, adding up their minutes played, certainly helps in this regard. Defensively, they know they can overcome the loss of Curry only by being active on defense while not having to play with Varejao/Thompson/McAdoo as much helps as well. The ORTG/DRTG is roughly 110/102 (+8 NetRtg). Curry has to deal with Barbosa and V/T/M more often which drags down defense and offense alike. The ORTG/DRTG is rougly 113/110.5 (+2.5 NetRtg). The defensive intensity somewhat goes with Green but while I do believe Green has clear DPoY impact, I don't believe it's 8.5 points (more like 5-6 compared to the average player) and maybe defensive intensity compared to a lime-up without Curry also goes because the teammates know they should still have the offensive advantage. Therefore we must consider line-ups as well as a different mindset to be important, too.

3. Game planning. We all know that teams prepare against Curry in particular, this is no secret. When Curry is on the floor and Green on the bench, Warriors' most important counter to teams overplaying Curry is basically gone. Therefore the offense becomes worse, although it's still more than respectable (113 ORTG). When Green sits, the Warriors don't have a reliable PnR-playmaker anymore and most of the minutes from Green go to Barnes (he plays 180 of the 240 minutes with Curry in the discussed constellation) who plays a totally different style. In other words: Golden State isn't well-prepared to play without Green on offense or on defense. This speaks volume about his importance but maybe not so much about on-court impact (although it's still high) or individual goodness (although he's extremely good). So what happens with Green on the court and Curry on the bench with the Warriors' offense? Well, here's my theory. As I mentioned above, the team looks to get more good looks and consequently lowers the pace (to 98.9). Not only does Klay help to overcome the absence of Curry to some extent, the Warriors are a well-coached team and they run more sets with Curry on the bench which allows them to maintain good offensive efficiency. But we have to keep in mind: this doesn't work for larger minutes or entire games, basically whenever the teams can focus on stopping the Warriors from executing their sets rather than stopping Curry from doing his thing. Unfortunately for me as a statistician, but fortunately for me as a fan, we only have three games this season in which Curry missed the game entirely and I believe only two in which the other team could scratch Curry out of the game-plan. With Green on the court, the Warriors performed -4.5 (vs. Dallas), +1.1 (vs. Houston) and +0.6 (vs. Atlanta) relative to the expectation (DRTG of the team they faced). Overall, this means their offense was worse than the average offense without Curry and the average ORTG is well below the 110 we can see in the WOWY data. An even smaller sample size, sure, but I didn't want to hide it.

These are the three most important aspects to keep in mind when interpreting Green's and Curry's +/- when one of them is on the bench. If we take all this into account, the ORTG/DRTG would look different and ultimately - this is my and probably most people's belief - favor Curry compared to Green.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#257 » by kayess » Wed Apr 13, 2016 12:34 pm

bondom34 wrote:I'm starting to not feel insane for that thread a few weeks ago :lol:.


Which one?
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#258 » by bondom34 » Wed Apr 13, 2016 12:40 pm

kayess wrote:
bondom34 wrote:I'm starting to not feel insane for that thread a few weeks ago :lol:.


Which one?

This whole thread got off track.

viewtopic.php?f=64&t=1434332
MyUniBroDavis wrote: he was like YALL PEOPLE WHO DOUBT ME WILL SEE YALLS STATS ARE WRONG I HAVE THE BIG BRAIN PLAYS MUCHO NASTY BIG BRAIN BIG CHUNGUS BRAIN YOU BOYS ON UR BBALL REFERENCE NO UNDERSTANDO
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#259 » by MyUniBroDavis » Wed Apr 13, 2016 1:18 pm

The-Power wrote:
Doctor MJ wrote:In all seriousness, I'm trying to think of ways to apparent Green's lift edge as something other than 1) noise, or 2) Green actually lifting team performance more, and I still have nothing.

Obviously I have noticed Green's edge in +/- as well and pondered on the reasons for it. Let me start off by proclaiming two fundamental things:

1. I do believe Green has superstar-level impact in his own right.
2. I do not believe that the data we have is just noise, it's real because we can see a pretty clear pattern.

So, what does this leave us with and how do I answer the question about impact as someone who is still in Camp-Curry? Well, there is one assumption to be made which we can't verify nor falsify but it's an assumption we need to make in order to have a viable discussion in the first place. The assumption would be: Curry's impact on his team's point differential is greater than Green's when both are on the court. Since they spend most of the time together on the court, this would make up for the majority of their raw +/- numbers and also greatly influence their RAPM. If the assumption is valid, this would mean that Green is being overrated to some extend by the +/- numbers due to playing next to Curry while Curry is being underrated relative to Green overall.

In this case, what we have to explain is Green's superioty when one of them is on the bench. This means mostly guesswork for us and while this isn't particularly satisfying I see no way around it.

1. Line-ups. I don't believe they explain everything, especially given the relatively small sample size everybody is aware of, but they mean at least something. The most eye-popping number with probably the most explanatory power is playing time with Klay Thompson. Green on/Curry off is a sample of 346 minutes, and Klay was on the floor for 297 minutes or 86% of the time. Curry on/Green off is a sample of 240 minutes, and Klay was on the floor for 106 minutes or 44% of the time. The difference is obviously huge and important as long as we assume Klay to have significant impact (which I do, although not at superstar-level). We also see some random outliers like Barbosa who - while only taking 30 TSA with Curry on the floor and Green on the bench, but given the sample size it factors in - shoots is incredibly ineffecient in this scenario (36% TS) and everybody who watches Barbosa play should know his style and it is 'hit or miss' most of the time, regardless of the teammates around him. Curry also played 24.5% of the time with either Varejao, Jason Thompson, McAdoo or Looney - all poor big men, especially on defense - while Green played only 8.6% (!) of the time with them. In other words: Green's replacements are worse overall than Curry's and this matters. We could go on but the first part if definitely more important than anything else we could potentially find.

2. Intensity. The key with Green on and Curry off is not only to maintain decent offensive efficiency but rather to keep up the defensive intensity. When Curry sits on the bench, the team knows that they must be focused defensively and take good shots on offense. In order to maintain offensive efficiency, the pace drops noticeably and the % of FGM assisted reaches an incredibly high level (76%). Having more playing time with Igoudala and Livingston, adding up their minutes played, certainly helps in this regard. Defensively, they know they can overcome the loss of Curry only by being active on defense while not having to play with Varejao/Thompson/McAdoo as much helps as well. The ORTG/DRTG is roughly 110/102 (+8 NetRtg). Curry has to deal with Barbosa and V/T/M more often which drags down defense and offense alike. The ORTG/DRTG is rougly 113/110.5 (+2.5 NetRtg). The defensive intensity somewhat goes with Green but while I do believe Green has clear DPoY impact, I don't believe it's 8.5 points (more like 5-6 compared to the average player) and maybe defensive intensity compared to a lime-up without Curry also goes because the teammates know they should still have the offensive advantage. Therefore we must consider line-ups as well as a different mindset to be important, too.

3. Game planning. We all know that teams prepare against Curry in particular, this is no secret. When Curry is on the floor and Green on the bench, Warriors' most important counter to teams overplaying Curry is basically gone. Therefore the offense becomes worse, although it's still more than respectable (113 ORTG). When Green sits, the Warriors don't have a reliable PnR-playmaker anymore and most of the minutes from Green go to Barnes (he plays 180 of the 240 minutes with Curry in the discussed constellation) who plays a totally different style. In other words: Golden State isn't well-prepared to play without Green on offense or on defense. This speaks volume about his importance but maybe not so much about on-court impact (although it's still high) or individual goodness (although he's extremely good). So what happens with Green on the court and Curry on the bench with the Warriors' offense? Well, here's my theory. As I mentioned above, the team looks to get more good looks and consequently lowers the pace (to 98.9). Not only does Klay help to overcome the absence of Curry to some extent, the Warriors are a well-coached team and they run more sets with Curry on the bench which allows them to maintain good offensive efficiency. But we have to keep in mind: this doesn't work for larger minutes or entire games, basically whenever the teams can focus on stopping the Warriors from executing their sets rather than stopping Curry from doing his thing. Unfortunately for me as a statistician, but fortunately for me as a fan, we only have three games this season in which Curry missed the game entirely and I believe only two in which the other team could scratch Curry out of the game-plan. With Green on the court, the Warriors performed -4.5 (vs. Dallas), +1.1 (vs. Houston) and +0.6 (vs. Atlanta) relative to the expectation (DRTG of the team they faced). Overall, this means their offense was worse than the average offense without Curry and the average ORTG is well below the 110 we can see in the WOWY data. An even smaller sample size, sure, but I didn't want to hide it.

These are the three most important aspects to keep in mind when interpreting Green's and Curry's +/- when one of them is on the bench. If we take all this into account, the ORTG/DRTG would look different and ultimately - this is my and probably most people's belief - favor Curry compared to Green.


Oh, and just to add on, the Warriors offense with both curry and klay on the floor but draymond off of it is 117.5 offrtg, while the defensive rtg is 110.8 rtg

Meanwhile, the other way around the offense is 109.7 rtf, and the defense is 103.4 rtg.

In the minutes with both klay and curry off the court the offense improves more for draymond, which is completely because of sample size

(In 49 minutes, he had 14 assists, 6 turnovers, 27 points on
44.3% TS)

One thing for me though in terms of "lineups" is the SBDS that they use so much. Now, don't get me wrong, curry is vital to these lineups, but I think green is definitely more valuable in these lineups. Curry's role in these lineups is basically the same as always. I don't think his impact is magnified or minimized by these lineups. I can't say the same for green, as the lineups honestly completely depend on his skill set to pass in transition, pass out of the p and r as the roll man, his vision, etc, this doesent even get into the defense part, which he is vital to, more than usual even.

Looking at wowym the sample sizes are too small, barely half a game. But while greens is 20 minutes and the offense is sitll in the 1.4 range (which probably is noise) curry's is 36 minutes and while it's still dominant at 1.22, curry had a TS of above 100% in that sample, and. More than 50 points per 36 iirc, now this is sample size for sure noise but just something to say,

the defense part is interesting. With those 3 off the court and curry on it the defense is still around 110 in defensive rtg though. Offense goes up to 114.3. I'd say that's a sample size issue though. (Adding bogut to the on court makes it waaaay to bad to be reliable on defense)

U made the best points I've heard on this topic.
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Re: 2016 RAPM/RPM/etc. *Updated 4/6* **Also 5-Man RAPM* 

Post#260 » by kayess » Wed Apr 13, 2016 3:57 pm

The-Power wrote:
Doctor MJ wrote:

A short preface on meta-think related to this discussion:
[Spoiler]
This situation reminds me of Posnanski (one of the better sports writers out there - at least when I still regularly read his output around 4 years ago), talking about the race between Felix, the FIP and WAR leader, with 13 wins, vs. some guy with clearly inferior FIP/WAR, but 20 wins, in the Cy Young. Obviously the sabermetric community was up in arms when Felix lost, about how Felix was the MVP "because WAR!"

He said that he was saddened by this because "WAR shouldn't be a conversation ender - it should be a conversation starter", and that people were falling victim to, what is in essence, the stats version of the ring argument.

Thankfully since our best stats are not as predictive as WAR is, it's not as definitive a smoking gun when used in arguments; but of course we aren't completely immune to doing something similar to this.

[/Spoiler]
I'll try to summarize your points (because I am too lazy to format - please feel free to correct me if I am wrong) and try to discuss them some more:

1) Curry's support in Curry on/Green off lineups is substantially worse than Green on/Curry off lineups
2) Intensity: Green on/Curry off know that if they step it up defensively, they can approximate the margin
3) Gameplanning: short minute rests when Curry isn't on the bench is not comparable to having a whole game without him (and why)

I'm almost certain you realize that RAPM accounts for all 3 - it is most probably the motivation behind assuming Curry has more impact in the On sample - but unless we get more data and the model is able to tell them, and their impact apart from each other better, I think that it would be more fruitful to think big picture think about what how and why particular skillsets translate into impact, instead of just looking at the most likely reasons why Curry > Green, or the other way around - again, this is something I feel we'll get to approximate anyway, data permitting. An analysis of skillsets translating to impact is ultimately going to help us weed through RAPM debates with more nuance, and, if we structure it well enough, provide a link of sorts from scouting / proper eye-test to more correctly adjusting future RAPM values, which would be very powerful from a front office standpoint.

Curry: nothing more really needs to be said. The anti-Shaq, in a sense - his unlimited range warps the floor and makes it easier for teammates to score. Has the vision to take advantage of double teams if you send them his way, and the handles/improved at-rim finishing if you play him too close. If you take play him straight up, then he just shoots it in your face and puts up ATG volume at ATG outlier efficiency.

If that kind of attack is sustainable, and doesn't really show any dip in box-score or +/-, I'd say it's "GOAT, not close". And in fact, I did, ~50 or so games in, before the numbers made me question whether there was some interaction I wasn't seeing, some quality I wasn't giving enough credit. I know there's a bit of danger in this - but as long as I'm aware that I don't need to fit the valuation of something to fit the numbers, I'll be fine.

Green: has pretty much everything except ATG volume and ATG efficiency - can shoot the 3 at elite percentages, create his own shot to an extent, drive/put the ball on the floor, is a great playmaker (especially relative to positional average), and is a DPOY caliber defender. He's basically the guy you'd want next to any great scorer - and of course, Steph might just be the greatest.

This looks like an absolute landslide for Steph, of course - but if you examine the things that's made Curry's current season so special, it starts to get slightly more complicated:

1) His improved at-rim finishing because of his increased range AND willingness to shoot - when I watch him, I notice he gets so many uncontested layups this way - even instances where the help doesn't even try to, uh, help, because they're too far away. Sometimes help is able to come because the Warriors aren't properly spaced (they're a step or two inside the line), but Curry's so quick and crafty that he's able to finish anyway.

2) You can't beat him with doubles because he just passes it out - we have seen teammates benefiting from the extra attention a player gets. But why isn't it ATG level?

I think the answer to both is in large part, due to Draymond Green.

    a) There's no help because the center is all the way out to the arc, where he has to follow, or risk an open 3 from Draymond, or god forbid, Steph **** Curry.

    b) With a center shooting 40%+ from 3, you just put him at the 3 point line, the wings at the corners, and if your PF can hit the midrange J that means he's the only guy who can help. Of course, if your PF can also shoot 3s...

    c) This ties in with point #2 somewhat - if you try to trap, say, a Gino/Parker + Duncan pick and roll at the top of the key, the Spurs will get a clean look a vast majority of the time because they're the Spurs, but sometimes, it can stall (like vs. Miami's swarming D for stretches). The reason: they can simply dare Duncan to shoot from that distance, and use the extra time they don't have to worry about him shooting rotating to other people. If you do this inside the arc, within Duncan's range, you're still giving up a shot you're happy with, and in fact, because the floor has shrunk, you might even be able to rotate in time and not give up anything for free at all. This doesn't work against GS, for obvious reasons.

    d) Of course, he can also run the O from the high post - and since there's one less person patrolling the paint, you can use all sorts of curls and cuts with shooters to get clean at-rim looks, or 3s. It's absolutely devastating.

    e) Then of course, he's a DPOY-level player who can guard centers AND perimeter players.

Don't get me wrong - I am firmly in Curry's camp here - and in fact my "agenda" is to make the best Draymond argument possible, see it get rebutted, see some better Draymond arguments, see those get rebutted... until we finally see Curry on top. Or not - and either way, learn something new about the game of basketball.

I think this whole analysis just makes me consider the ff:

1) Curry's 2016 is no longer the complete runaway GOAT peak - this is true for most GOAT RS, but I feel applies more to Curry than anyone else - this team is built COMPLETELY around his main strengths. Everybody compliments him to a frightening degree, including, of course, Green. They're also extremely well coached. We've long considered player talent and fit around players in our analysis, but when we see an extreme version of it, it seems we're a bit unwilling to give credit to the cast for enabling the star to operate as his fullest, as much as the star enables the team around him to. It's an extremely, extremely rare case - look at the closest GOAT peak candidates to Curry:

    LeBron '09/'13 - great fit/mediocre talent, and then vice-versa in '13.

    Shaq '00/'01 - not much really aside from Kobe, but still enough to post the most dominant PO run ever (with Kobe going nuts, of course). Adjust it to a normal Kobe performance, but give Shaq better 3-7 rotation guys - does the result get even better, stay about the same, or become worse? I honestly don't know, but I'd lean towards the first option (at least, from a meta-thinkperspective).

    Jordan '91 - good fit/good talent: and of course they were putting up near GOAT SRS anyway. In '96, when he was a shell of himself athletically, and past his prime, leads his team to the GOAT RS (until this year). Does Jordan do even better in '91 with his '96 cast, which wasn't THAT overwhelming anyway?

None of them had anywhere close to the situation Curry is in now. This does NOT equivocate to "they would have done even better if given an analogous cast". We can't know that (but you can certainly make arguments for Shaq I guess. I don't know about the other 2 wings). OTOH, it's Curry's unlimited range that makes me give him the slight, but clear nod for GOAT peak. That's something that operates independent of his teammates, and why I think he can scale up any team EVER better than anyone EVER.

2) Really just a corollary to 1, but it really triple, quadruple underscores how important non-player controlled variables factor into a player's performance. Coaching, fit, your teammates' understanding of how to work in the system... The way we traditionally view things lends itself to us underrating the effect of a player on team performance/non-performance (Draymond/Kyrie), or overstating it.

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