World Rugby provide data about each game at #RWC2019 (link). These data include a record of kicks, passes, scrums and lineouts.
For some time, I have been interested in whether we can describe a game in a single number. This number expresses the relationships between kicks, passes, scrums and lineouts. To date, 28 games have been played. In these games, my numbers vary from 0.52 to 5.34. The median ratio is 2.16.
The 28 games as a single number (a ratio of kicks/passes divided by lineouts/scrums):
I have used ggplot to visualise these data points with geom_point and identified the range of ratios:
I used the glm () function to look at the relationship between the ratios: (“glm is used to fit generalized linear models, specified by giving a symbolic description of the linear predictor and a description of the error distribution” (link)).
The median ratio for the 28 games played is 2.16. I used the geom_hline function to draw this median (link).
Photo Credit
France v Tonga (World Rugby)
