R for Visualization and Computation

Let's break down the R code for a golf match tournament and understand the functionality of each part of the script.

Let's break down the R code for a golf match tournament and understand the functionality of each part of the script.

https://www.kaggle.com/code/abhinavraj111/golf-match-tournament-with-r

1. Simulating a Match (simulateMatch function)

The simulateMatch function is used to simulate a match between two teams and determine the winner:

simulateMatch <- function(team1, team2) { # Randomly choose the winner (50% chance for each team) winner <- ifelse(runif(1) > 0.5, team1, team2) return(winner) }

• Parameters:

  • team1 and team2: These represent the two teams that are playing against each other in a given match.

• Functionality:

  • runif(1) generates a random number between 0 and 1. This is the key part that decides the winner.

  • The ifelse function checks if this random number is greater than 0.5. If it is, team1 wins, otherwise, team2 wins.

  • The winner is then returned to the calling function.

  • This simple simulation gives a 50% chance for each team to win, effectively making the match a random outcome, simulating the unpredictability of golf matches or tournaments.

2. Simulating the Tournament (simulateTournament function)

The simulateTournament function orchestrates the entire tournament by simulating each round, starting from the quarterfinals and progressing to the semifinals. It also stores the results of each match.

https://www.pexels.com/@abhinav-raj-1697090400/

# Function to simulate a match between two teams and return the winner

simulateMatch <- function(team1, team2) {

  # Randomly choose the winner (50% chance for each team)

  winner <- ifelse(runif(1) > 0.5, team1, team2)

  return(winner)

}

# Main function to simulate the tournament

simulateTournament <- function() {

  # Teams participating in the tournament

  teams <- c(1, 2, 3, 4, 5, 6, 7, 8)

  # To store the match results

  results <- list()

  # Round 1: Quarterfinals

  winnersRound1 <- c()

  cat("\n** Round 1 (Quarterfinals) **\n")

  for (i in seq(1, length(teams), by = 2)) {

    team1 <- teams[i]

    team2 <- teams[i + 1]

    winner <- simulateMatch(team1, team2)

    winnersRound1 <- c(winnersRound1, winner)

    cat(paste("\nMatch: Team", team1, "vs Team", team2, "\n"))

    cat(paste("Winner: Team", winner, "\n"))

    cat(paste("Action: Team", winner, "dominates and advances to the next round!\n"))

    results[[length(results) + 1]] <- list(round = 1, team1 = team1, team2 = team2, winner = winner)

  }

  # Round 2: Semifinals

  winnersRound2 <- c()

  cat("\n** Round 2 (Semifinals) **\n")

  for (i in seq(1, length(winnersRound1), by = 2)) {

    team1 <- winnersRound1[i]

    team2 <- winnersRound1[i + 1]

    winner <- simulateMatch(team1, team2)

    winnersRound2 <- c(winnersRound2, winner)

    cat(paste("\nMatch: Team", team1, "vs Team", team2, "\n"))

    cat(paste("Winner: Team", winner, "\n"))

    cat(paste("Action: Team", winner, "defeats the opponent and heads to the final!\n"))

    results[[length(results) + 1]] <- list(round = 2, team1 = team1, team2 = team2, winner = winner)

  }

  # Round 3: Finals

}

# Run the tournament and print the results

tournament_results <- simulateTournament()

Let's break down each section of this function:

1. Teams:

teams <- c(1, 2, 3, 4, 5, 6, 7, 8)

• An array teams is created containing the IDs of the 8 teams participating in the tournament, numbered from 1 to 8.

2. Storing Results:

results <- list()

• This list will store all match results throughout the tournament, such as the teams that played and the winner of each match.

3. Round 1 (Quarterfinals):

winnersRound1 <- c() cat("\n** Round 1 (Quarterfinals) **\n")

• The first round of the tournament (quarterfinals) starts. The winnersRound1 vector will hold the winners from this round, and the cat() function prints a header to the console.

• A for loop runs through the teams list, pairing teams 1 vs 2, 3 vs 4, etc. Each pair plays a match.

for (i in seq(1, length(teams), by = 2)) { team1 <- teams[i] team2 <- teams[i + 1] winner <- simulateMatch(team1, team2) winnersRound1 <- c(winnersRound1, winner) cat(paste("\nMatch: Team", team1, "vs Team", team2, "\n")) cat(paste("Winner: Team", winner, "\n")) cat(paste("Action: Team", winner, "dominates and advances to the next round!\n")) results[[length(results) + 1]] <- list(round = 1, team1 = team1, team2 = team2, winner = winner) }

• The loop runs from 1 to the length of the teams array with a step of 2 (by = 2), so it pairs teams for each match (e.g., team 1 vs team 2, team 3 vs team 4, etc.).

• The simulateMatch function is called for each match to randomly decide the winner.

• After each match, the cat() function prints the match details:

  • The teams involved

  • The winner

  • A narrative "Action" line describing the outcome (e.g., "Team X dominates and advances to the next round!")

• The results of the match are stored in the results list, with the round number, the teams, and the winner.

4. Round 2 (Semifinals):

The code for Round 2 (semifinals) is very similar to Round 1, but it uses the winners of Round 1 (winnersRound1) as the teams for the semifinals.

winnersRound2 <- c() cat("\n** Round 2 (Semifinals) **\n") for (i in seq(1, length(winnersRound1), by = 2)) { team1 <- winnersRound1[i] team2 <- winnersRound1[i + 1] winner <- simulateMatch(team1, team2) winnersRound2 <- c(winnersRound2, winner) cat(paste("\nMatch: Team", team1, "vs Team", team2, "\n")) cat(paste("Winner: Team", winner, "\n")) cat(paste("Action: Team", winner, "defeats the opponent and heads to the final!\n")) results[[length(results) + 1]] <- list(round = 2, team1 = team1, team2 = team2, winner = winner) }

• The teams for this round are the winners of Round 1. The same process is followed: matches are simulated, winners are printed with "Action" narratives, and results are stored.

5. Finals:

The Finals section is not yet complete, but it would involve the winners of the semifinals facing off, and a similar process would be followed.

cat("\n** Finals **\n")

• The finals match would happen here, with the winners of Round 2 (winnersRound2) facing off for the final match. You can finish this section by simulating the final match and printing its result, similar to how the other rounds are handled.

Conclusion:

In summary, the code simulates a single-elimination knockout tournament with 8 teams. The process works as follows:

1. Quarterfinals (Round 1): Teams are randomly paired, and winners are decided through the simulateMatch function.

2. Semifinals (Round 2): The winners from Round 1 play against each other, and the process repeats.

3. Finals: The final two teams play for the championship (this part is not yet completed but would follow the same pattern).

Each round is printed with details about the matchups, the winner, and a narrative description ("Action"). The tournament is dynamic, and the winners are determined randomly.