Lewandowski Shot Contribution (Hinrunde 2019-2020)

lewandoski_shot_contrib_hinrunde1920.r

## Twitter: @R_by_Ryo
## Website: ryo-n7.github.io

## Packages
pacman::p_load(ggplot2, dplyr, glue, extrafont, ggrepel, magick, ggtext)
loadfonts(quiet = TRUE)

## load data
lewa_shot_contrib <- readRDS(url("https://raw.githubusercontent.com/Ryo-N7/soccer_ggplots/master/data/lewa_shot_contrib.RDS"))

## Plot
lewa_shot_contrib %>% 
  ggplot(aes(x = opponent)) +
  geom_line(aes(y = xG_xA, group = NA)) +
  geom_point(aes(y = xG_xA, color = match_result), size = 6) +
  geom_hline(yintercept = 0.28) +
  annotate("text", x = 0.75, y = 0.35, hjust = 0, size = 4,
           family = "Roboto Condensed",
           label = "Average Bundesliga Attacker: 0.28 xG + xA") +
  scale_y_continuous(labels = seq(0, 3.5, by = 0.2),
                     breaks = seq(0, 3.5, by = 0.2),
                     limits = c(0, 3.1)) +
  scale_color_manual(values = fill_cols) +
  labs(title = "<b style='color: red'>Robert Lewandowski</b>  Shot Contribution",
       subtitle = "xG + xA | Bayern München | Hinrunde (2019-2020)",
       x = NULL, y = "xG + xA",
       caption = glue("
                      Data: understat.com
                      Twitter: @R_by_Ryo")) +
  theme_minimal() +
  theme(text = element_text(family = "Roboto Condensed"),
        plot.title = element_markdown(size = 20),
        plot.subtitle = element_text(size = 18),
        plot.caption = element_text(size = 12),
        axis.title = element_text(size = 16),
        axis.text = element_text(size = 12),
        axis.text.x = element_text(angle = 30),
        legend.position = c(0.1, 0.95),
        legend.direction = "horizontal",
        legend.title = element_blank(),
        legend.text = element_text(size = 14),
        panel.grid.minor = element_blank())
  
## save
ggsave(filename = here::here("Bundesliga 2019-2020/output/lewa_shot_contrib_hinrunde.png"),
       height = 8, width = 12)

## add_logo function from Thomas Mock
add_logo <- function(plot_path, logo_path, logo_position, logo_scale = 10){

    # Requires magick R Package https://github.com/ropensci/magick

    # Useful error message for logo position
    if (!logo_position %in% c("top right", "top left", "bottom right", "bottom left")) {
        stop("Error Message: Uh oh! Logo Position not recognized\n  Try: logo_positon = 'top left', 'top right', 'bottom left', or 'bottom right'")
    }

    # read in raw images
    plot <- magick::image_read(plot_path)
    logo_raw <- magick::image_read(logo_path)

    # get dimensions of plot for scaling
    plot_height <- magick::image_info(plot)$height
    plot_width <- magick::image_info(plot)$width

    # default scale to 1/10th width of plot
    # Can change with logo_scale
    logo <- magick::image_scale(logo_raw, as.character(plot_width/logo_scale))

    # Get width of logo
    logo_width <- magick::image_info(logo)$width
    logo_height <- magick::image_info(logo)$height

    # Set position of logo
    # Position starts at 0,0 at top left
    # Using 0.01 for 1% - aesthetic padding

    if (logo_position == "top right") {
        x_pos = plot_width - logo_width - 0.01 * plot_width
        y_pos = 0.01 * plot_height
    } else if (logo_position == "top left") {
        x_pos = 0.01 * plot_width
        y_pos = 0.01 * plot_height
    } else if (logo_position == "bottom right") {
        x_pos = plot_width - logo_width - 0.01 * plot_width
        y_pos = plot_height - logo_height - 0.01 * plot_height
    } else if (logo_position == "bottom left") {
        x_pos = 0.01 * plot_width
        y_pos = plot_height - logo_height - 0.01 * plot_height
    }
    # Compose the actual overlay
    magick::image_composite(plot, logo, offset = paste0("+", x_pos, "+", y_pos))
}

## bundesliga logo
plot_logo <- add_logo(plot_path = here::here("Bundesliga 2019-2020/output/lewa_shot_contrib_hinrunde.png"),
         logo_path = "https://upload.wikimedia.org/wikipedia/en/d/df/Bundesliga_logo_%282017%29.svg",
         logo_position = "top right",
         logo_scale = 18)

## save 
magick::image_write(
  image = plot_logo, 
  path = here::here("Bundesliga 2019-2020/output/lewa_shot_contrib_hinrunde_logo.png"))