SoccerRegression/R_codes.vrb at master · animeshsg/SoccerRegression · GitHub

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\frametitle{Overdispersion check}
\protect\hypertarget{overdispersion-check}{}
\begin{verbatim}
## Warning: package 'qcc' was built under R version 4.2.2
\end{verbatim}

\begin{verbatim}
## Package 'qcc' version 2.7
\end{verbatim}

\begin{verbatim}
## Type 'citation("qcc")' for citing this R package in publications.
\end{verbatim}

\begin{verbatim}
##
## Overdispersion test Obs.Var/Theor.Var Statistic p-value
##        poisson data          5.280916  512.2488       0
\end{verbatim}

Overdispersion is present, so we try fitting quasipoisson

\begin{verbatim}
##
## Call:
## glm(formula = Gls ~ . - team, family = quasipoisson(), data = data1)
##
## Deviance Residuals:
##      Min        1Q    Median        3Q       Max
## -2.01244  -0.55563   0.00422   0.40505   1.76659
##
## Coefficients:
##                  Estimate Std. Error t value Pr(>|t|)
## (Intercept)     3.296e+00  4.865e-01   6.774 2.01e-09 ***
## leageEpl       -3.036e-02  5.959e-02  -0.509  0.61187
## leageLaliga    -5.656e-02  6.423e-02  -0.880  0.38126
## leageLigue1    -9.408e-03  5.263e-02  -0.179  0.85858
## leageSerieA     2.046e-03  5.298e-02   0.039  0.96930
## No.Pl          -3.579e-03  4.110e-03  -0.871  0.38660
## no.sh          -1.366e-03  5.859e-04  -2.332  0.02226 *
## SoT             7.118e-03  1.349e-03   5.277 1.12e-06 ***
## PK              1.150e-02  6.728e-03   1.709  0.09144 .
## FK             -1.911e-03  2.585e-03  -0.739  0.46200
## Att.3rd.T       2.836e-05  3.808e-05   0.745  0.45867
## Succ.Drib       5.631e-04  7.961e-04   0.707  0.48148
## Att.Drib       -7.153e-04  4.916e-04  -1.455  0.14961
## Touches        -4.415e-05  7.602e-05  -0.581  0.56302
## Prog.T          2.681e-04  2.089e-04   1.283  0.20311
## GCA.Drib        1.620e-02  5.494e-03   2.949  0.00419 **
## ShortAT_Pass    5.289e-05  8.415e-05   0.629  0.53148
## MediumtAT_Pass  5.678e-05  6.872e-05   0.826  0.41109
## LongAT_Pass     6.281e-05  1.083e-04   0.580  0.56356
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## (Dispersion parameter for quasipoisson family taken to be 0.7965294)
##
##     Null deviance: 492.772  on 97  degrees of freedom
## Residual deviance:  63.397  on 79  degrees of freedom
## AIC: NA
##
## Number of Fisher Scoring iterations: 4
\end{verbatim}