Predicted No-Decisions

Based on pitchers who never pitched in a game they didn’t start (season by season).

Raw Data

Multilevel Model

## Linear mixed model fit by REML ['lmerMod']
## Formula: ND ~ RperG + ERA + IPperG + GS + TmWpct + (1 | playerID)
##    Data: pitPlus
## 
## REML criterion at convergence: 26062.9
## 
## Scaled residuals: 
##     Min      1Q  Median      3Q     Max 
## -3.7911 -0.6017 -0.0553  0.5757  7.0737 
## 
## Random effects:
##  Groups   Name        Variance Std.Dev.
##  playerID (Intercept) 0.2216   0.4707  
##  Residual             4.5853   2.1413  
## Number of obs: 5914, groups:  playerID, 1723
## 
## Fixed effects:
##              Estimate Std. Error t value
## (Intercept)  5.928023   0.368020  16.108
## RperG        0.325100   0.062705   5.185
## ERA         -0.160407   0.010891 -14.728
## IPperG      -0.966782   0.043404 -22.274
## GS           0.267594   0.003126  85.614
## TmWpct      -1.878113   0.488493  -3.845
## 
## Correlation of Fixed Effects:
##        (Intr) RperG  ERA    IPperG GS    
## RperG  -0.466                            
## ERA    -0.496 -0.076                     
## IPperG -0.690  0.079  0.561              
## GS      0.288 -0.021 -0.076 -0.547       
## TmWpct -0.215 -0.507  0.055 -0.072 -0.081

Actual by Predicted

Residual by Predicted

DeGrom 2019