compute_division_ranks {nflseedR}

Compute NFL Division Rankings using Game Results

Description

Compute NFL Division Rankings using Game Results

Usage

compute_division_ranks(
  games,
  teams = NULL,
  tiebreaker_depth = 3,
  .debug = FALSE,
  h2h = NULL
)

Arguments

games

A data frame containing real or simulated game scores. The following variables are required:

sim

A simulation ID. Normally 1 - n simulated seasons.

game_type

One of 'REG', 'WC', 'DIV', 'CON', 'SB' indicating if a game was a regular season game or one of the playoff rounds.

week

The week of the corresponding NFL season.

away_team

Team abbreviation of the away team (please see divisions for valid team abbreviations).

home_team

Team abbreviation of the home team (please see divisions for valid team abbreviations).

result

Equals home score - away score.

teams

This parameter is optional. If it is NULL the function will compute it internally, otherwise it has to be a data frame of all teams contained in the games data frame repeated for each simulation ID (sim). The following variables are required:

sim

A simulation ID. Normally 1 - n simulated seasons.

team

Team abbreviation of the team (please see divisions for valid team abbreviations).

conf

Conference abbreviation of the team (please see divisions for valid team abbreviations).

division

Division of the team (please see divisions for valid division names).

tiebreaker_depth

A single value equal to 1, 2, or 3. The default is 3. The value controls the depth of tiebreakers that shall be applied. The deepest currently implemented tiebreaker is strength of schedule. The following values are valid:

tiebreaker_depth = 1

Break all ties with a coinflip. Fastest variant.

tiebreaker_depth = 2

Apply head-to-head and division win percentage tiebreakers. Random if still tied.

tiebreaker_depth = 3

Apply all tiebreakers through strength of schedule. Random if still tied.

.debug

Either TRUE or FALSE. Controls whether additional messages are printed to the console showing what the tie-breaking algorithms are currently performing.

h2h

A data frame that is used for head-to-head tiebreakers across the tie-breaking functions. It is computed by the function compute_division_ranks.

Value

A list of two data frames:

standings

Division standings.

h2h

A data frame that is used for head-to-head tiebreakers across the tie-breaking functions.

See Also

The examples on the package website

Examples

# Change some options for better output
old <- options(list(digits = 3, tibble.print_min = 64))
library(dplyr, warn.conflicts = FALSE)

try({#to avoid CRAN test problems
nflseedR::load_sharpe_games() %>%
  dplyr::filter(season %in% 2019:2020) %>%
  dplyr::select(sim = season, game_type, week, away_team, home_team, result) %>%
  nflseedR::compute_division_ranks() %>%
  purrr::pluck("standings")
})

# Restore old options
options(old)