soccerPitchHalf: Draws a vertical half soccer pitch for the purpose of...

In JoGall/soccermatics: Visualise football (soccer) tracking and event data

Description

Adds soccer pitch outlines (with transparent fill) to an existing ggplot object (e.g. heatmaps, passing maps, etc..)

Usage

soccerPitchHalf(
  lengthPitch = 105,
  widthPitch = 68,
  arrow = c("none", "r", "l"),
  theme = c("light", "dark", "grey", "grass"),
  title = NULL,
  subtitle = NULL,
  data = NULL
)

Arguments

lengthPitch, widthPitch	length and width of pitch in metres
arrow	adds team direction of play arrow as right ('r') or left ('l'); 'none' by default
theme	palette of pitch background and lines, either light (default), dark, grey, or grass;
title, subtitle	adds title and subtitle to plot; NULL by default
data	a default dataset for plotting in subsequent layers; NULL by default

Value

a ggplot object

See Also

soccerShotmap for plotting a shotmap on a half pitch for a single player or soccerPitch for drawing a full size soccer pitch

Examples

library(ggplot2)
library(dplyr)
data(statsbomb)

# normalise data, get non-penalty shots for France, 
# add boolean variable 'goal' for plotting
my_df <- statsbomb %>%
  soccerTransform(method = 'statsbomb') %>% 
  filter(team.name == "France" &
         type.name == "Shot" &
         shot.type.name != 'penalty') %>%
  mutate(goal = as.factor(if_else(shot.outcome.name == "Goal", 1, 0)))
  
soccerPitchHalf(data = my_df, theme = 'light') +
  geom_point(aes(x = location.y, y = location.x,
                 size = shot.statsbomb_xg, colour = goal),
             alpha = 0.7)
            

JoGall/soccermatics documentation built on Aug. 12, 2021, 1:20 p.m.