generate_shiny_code

Function: generate_shiny_code

This function generates the code in R that can be used in Shiny to visualize football data using the worldfootballr package. It takes in a list of charts as input and outputs the code.

Parameters

• charts (list): A list of charts to include in the Shiny app. Valid options are 'Player's Shot Map', 'Team's xG Chart', 'Player's Shot Accuracy Chart', 'Team's Ball Possession Chart', and 'Team's Shots Chart'.

Returns

• shiny_code (character): The generated R code for the Shiny app.

Code

generate_shiny_code <- function(charts) {
  # Check if valid charts are provided
  valid_charts <- c("Player's Shot Map", "Team's xG Chart", "Player's Shot Accuracy Chart", "Team's Ball Possession Chart", "Team's Shots Chart")
  if (!all(charts %in% valid_charts)) {
    stop("Invalid chart(s) provided. Please choose from:", paste0("\n- ", valid_charts))
  }
  
  # Generate code for each selected chart
  chart_code <- ""
  for (chart in charts) {
    if (chart == "Player's Shot Map") {
      chart_code <- paste0(chart_code, "\n# Code for Player's Shot Map chart")
      # Add code here to generate the Player's Shot Map chart
    } else if (chart == "Team's xG Chart") {
      chart_code <- paste0(chart_code, "\n# Code for Team's xG Chart")
      # Add code here to generate the Team's xG Chart
    } else if (chart == "Player's Shot Accuracy Chart") {
      chart_code <- paste0(chart_code, "\n# Code for Player's Shot Accuracy Chart")
      # Add code here to generate the Player's Shot Accuracy Chart
    } else if (chart == "Team's Ball Possession Chart") {
      chart_code <- paste0(chart_code, "\n# Code for Team's Ball Possession Chart")
      # Add code here to generate the Team's Ball Possession Chart
    } else if (chart == "Team's Shots Chart") {
      chart_code <- paste0(chart_code, "\n# Code for Team's Shots Chart")
      # Add code here to generate the Team's Shots Chart
    }
  }
  
  # Generate the complete Shiny app code
  shiny_code <- paste0("library(shiny)\n\nui <- fluidPage(\n\n  # Add UI elements here\n\n)\n\nserver <- function(input, output) {\n\n  # Add server code here\n\n}\n\nshinyApp(ui, server)")
  
  # Add chart code to the Shiny app code
  shiny_code <- gsub("# Add server code here", chart_code, shiny_code, fixed = TRUE)
  
  return(shiny_code)
}

Usage Example

charts <- c("Player's Shot Map", "Team's xG Chart", "Player's Shot Accuracy Chart")
shiny_code <- generate_shiny_code(charts)
print(shiny_code)

This will generate the following code:

library(shiny)

ui <- fluidPage(

  # Add UI elements here

)

server <- function(input, output) {

  # Code for Player's Shot Map chart

  # Code for Team's xG Chart

  # Code for Player's Shot Accuracy Chart

}

shinyApp(ui, server)

You can copy the generated code and use it in your Shiny app to visualize football data using the specified charts.