Calculate Player Network Centrality from Database — calculate_player

High-level function that loads delivery data from the database and computes network centrality quality scores for all players. This is the preferred method over PageRank as it better separates elite players from isolated clusters.

Usage

calculate_player_centrality(
  conn,
  format = "t20",
  gender = "male",
  min_deliveries = CENTRALITY_MIN_DELIVERIES,
  alpha = CENTRALITY_ALPHA,
  verbose = TRUE
)

Arguments

conn: DBI connection to the bouncer database.
format: Character. Match format: "t20", "odi", "test", or "all".
gender: Character. Gender filter: "male", "female", or "all".
min_deliveries: Integer. Minimum deliveries for inclusion.
alpha: Numeric. Opsahl's alpha parameter (default 0.5 = geometric mean).
verbose: Logical. Print progress messages.

Value

List with:

batters: Data frame with batter centrality results
bowlers: Data frame with bowler centrality results
matrices: The underlying matchup matrices
algorithm: Algorithm metadata (format, gender, alpha)

Examples

if (FALSE) { # \dontrun{
conn <- get_db_connection(read_only = TRUE)
cent <- calculate_player_centrality(conn, format = "t20")
head(cent$batters[order(-cent$batters$centrality), ])
DBI::dbDisconnect(conn, shutdown = TRUE)
} # }