October 27, 2015

Thoughts on the Myth of the Myth of the Hot Hand

Filed under: Uncategorized — wwinston @ 10:14 am

This new analysis is all wrong. I simulated basketball players whose number of shots in game is normally distributed with mean 10 and sigma 2. Each player is a 50% shooter and successive shots are independent I played out 1000 players and aggregated over all players the fraction of the time a made shot was followed by a made shot. I get 50% as expected. But if I compute for each player the fraction of the time a made shot is followed by a made shot and average these numbers over all players  I get 44% which is what the new stuff says. But really the first computation is the one that should be used in any study to see if a hot hand exists.

NFL Ratings October 27

Filed under: Uncategorized — wwinston @ 7:40 am
Rank Teams Off Def Rating
1 New England Patriots 10.79 -1.04 11.83
2 Arizona Cardinals 7.19 -2.02 9.21
3 Cincinnati Bengals 5.06 -2.79 7.85
4 New York Jets 1.67 -5.74 7.41
5 Green Bay Packers 2.41 -3.49 5.90
6 Carolina Panthers 1.78 -3.19 4.97
7 Pittsburgh Steelers -0.71 -5.54 4.83
8 Philadelphia Eagles 0.70 -3.80 4.50
9 Atlanta Falcons 3.44 -0.60 4.04
10 Denver Broncos -0.85 -4.85 4.00
11 Seattle Seahawks -0.64 -4.02 3.38
12 St. Louis Rams -2.72 -3.67 0.95
13 Buffalo Bills 1.04 0.74 0.30
14 New York Giants 0.32 0.02 0.30
15 Minnesota Vikings -3.92 -3.94 0.02
16 Miami Dolphins 0.37 0.88 -0.51
17 Baltimore Ravens 1.49 2.03 -0.54
18 Kansas City Chiefs 0.05 1.27 -1.22
19 New Orleans Saints 0.03 1.64 -1.61
20 Oakland Raiders -0.21 1.44 -1.66
21 Washington Redskins -1.24 0.50 -1.73
22 Dallas Cowboys -2.04 0.40 -2.44
23 San Diego Chargers 0.88 4.50 -3.62
24 Cleveland Browns -1.01 2.72 -3.73
25 Indianapolis Colts -2.70 1.17 -3.87
26 Tennessee Titans -4.88 0.36 -5.23
27 Houston Texans -2.21 4.40 -6.61
28 San Francisco 49ers -5.39 1.53 -6.92
29 Chicago Bears -2.47 4.51 -6.98
30 Detroit Lions -1.88 5.17 -7.05
31 Jacksonville Jaguars -3.29 4.59 -7.88
32 Tampa Bay Buccaneers -1.08 6.83 -7.90

October 20, 2015

NFL Ratings OCtober 20

Filed under: Uncategorized — wwinston @ 9:14 pm
Rank Teams Off Def Rating
1 New England Patriots 13.18 -0.92 14.09
2 Arizona Cardinals 9.29 -1.99 11.28
3 New York Jets 2.62 -6.47 9.09
4 Pittsburgh Steelers 0.46 -7.99 8.46
5 Cincinnati Bengals 5.39 -2.81 8.20
6 Philadelphia Eagles 1.71 -5.53 7.24
7 Green Bay Packers 1.93 -4.13 6.06
8 Atlanta Falcons 7.32 1.54 5.79
9 Denver Broncos -1.34 -5.07 3.73
10 Carolina Panthers 0.73 -1.52 2.26
11 New York Giants 0.87 -0.89 1.76
12 Buffalo Bills 0.33 -1.41 1.74
13 Seattle Seahawks -0.69 -2.29 1.60
14 St. Louis Rams -2.36 -2.63 0.27
15 Washington Redskins -1.33 -1.46 0.13
16 Baltimore Ravens 2.57 3.21 -0.64
17 Minnesota Vikings -5.51 -4.70 -0.81
18 Dallas Cowboys -2.33 -1.09 -1.25
19 San Diego Chargers 1.27 3.24 -1.97
20 Miami Dolphins -2.18 0.04 -2.22
21 New Orleans Saints -0.84 1.76 -2.61
22 Cleveland Browns 0.25 2.91 -2.67
23 Indianapolis Colts -2.66 0.71 -3.36
24 Oakland Raiders -2.59 1.00 -3.59
25 Kansas City Chiefs -0.17 3.66 -3.83
26 San Francisco 49ers -3.56 1.67 -5.22
27 Tennessee Titans -3.03 4.01 -7.04
28 Detroit Lions -2.15 5.02 -7.17
29 Houston Texans -4.61 3.00 -7.61
30 Chicago Bears -3.21 5.20 -8.41
31 Jacksonville Jaguars -5.60 5.49 -11.09
32 Tampa Bay Buccaneers -3.74 8.46 -12.20

October 13, 2015

NFL Ratings October 13

Filed under: Uncategorized — wwinston @ 9:37 am

Pats have best offense, Broncos best defense.

 

Teams Off Def Rating
New England   Patriots 12.92 -2.00 14.92
Arizona Cardinals 11.36 -0.96 12.32
Atlanta Falcons 8.48 0.76 7.72
New York Jets -0.28 -6.92 6.64
Green Bay Packers 2.62 -3.93 6.55
Cincinnati Bengals 3.09 -3.08 6.17
Pittsburgh Steelers 0.26 -5.52 5.79
New York Giants 3.50 -0.72 4.22
Buffalo Bills 0.80 -3.42 4.22
Philadelphia Eagles 1.73 -2.44 4.17
Denver Broncos -2.10 -5.94 3.83
Seattle Seahawks 0.35 -2.19 2.54
Carolina Panthers -0.57 -1.06 0.49
St. Louis Rams -2.48 -2.65 0.18
Baltimore Ravens 3.34 3.43 -0.09
Washington Redskins -3.15 -3.00 -0.14
Tennessee Titans 0.35 0.52 -0.17
Minnesota Vikings -2.94 -2.00 -0.94
Dallas Cowboys -2.54 -1.26 -1.28
Cleveland Browns 0.18 2.08 -1.90
San Diego Chargers 0.88 4.01 -3.13
Indianapolis Colts -2.08 1.06 -3.14
Oakland Raiders -1.51 1.85 -3.36
Kansas City Chiefs 1.85 5.76 -3.91
New Orleans Saints -2.32 3.20 -5.52
San Francisco 49ers -4.44 1.39 -5.83
Detroit Lions -4.11 2.31 -6.41
Miami Dolphins -3.77 3.39 -7.16
Chicago Bears -5.41 2.27 -7.68
Houston Texans -5.94 2.76 -8.70
Jacksonville Jaguars -5.24 4.16 -9.39
Tampa Bay Buccaneers -2.85 8.15 -11.00

October 6, 2015

NFL Ratings October 6

Filed under: Uncategorized — wwinston @ 4:25 pm

Here are ratings  thru week 4

Teams

Off

Def

Rating

New England Patriots

12.62

1.57

11.04

Atlanta Falcons

10.77

0.22

10.55

Arizona Cardinals

8.90

-0.29

9.19

Cincinnati Bengals

2.40

-4.99

7.39

New York Giants

2.22

-4.70

6.92

New York Jets

0.66

-5.05

5.70

Pittsburgh Steelers

0.13

-4.77

4.90

Green Bay Packers

2.01

-2.57

4.58

Denver Broncos

-0.33

-4.66

4.33

Philadelphia Eagles

-1.05

-4.23

3.18

Dallas Cowboys

2.07

-0.33

2.40

Buffalo Bills

1.69

-0.67

2.36

Seattle Seahawks

-1.35

-2.63

1.28

Baltimore Ravens

2.28

1.08

1.19

Carolina Panthers

0.32

-0.57

0.89

St. Louis Rams

-1.88

-1.91

0.02

Washington Redskins

-1.92

-1.28

-0.64

Tennessee Titans

3.74

4.45

-0.71

Minnesota Vikings

-3.00

-2.20

-0.80

Kansas City Chiefs

4.29

5.89

-1.60

San Diego Chargers

1.89

4.77

-2.88

Oakland Raiders

0.53

3.53

-3.00

New Orleans Saints

-2.15

0.98

-3.13

Cleveland Browns

-3.00

0.39

-3.39

Detroit Lions

-3.75

0.40

-4.14

Indianapolis Colts

-4.26

0.16

-4.41

Houston Texans

-5.21

0.83

-6.04

Miami Dolphins

-4.48

2.74

-7.22

San Francisco 49ers

-6.83

1.76

-8.59

Jacksonville Jaguars

-6.82

1.87

-8.69

Chicago Bears

-5.29

4.80

-10.10

Tampa Bay Buccaneers

-5.20

5.39

-10.59

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