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Merge pull request #353 from JaseZiv/feature/tm-absence
Feature/tm absence
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Type: Package | ||
Package: worldfootballR | ||
Title: Extract and Clean World Football (Soccer) Data | ||
Version: 0.6.4.0014 | ||
Version: 0.6.5 | ||
Authors@R: c( | ||
person("Jason", "Zivkovic", , "[email protected]", role = c("aut", "cre", "cph")), | ||
person("Tony", "ElHabr", , "[email protected]", role = "ctb"), | ||
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#' @importFrom rvest html_elements html_text html_table html_attr | ||
#' @importFrom xml2 read_html | ||
#' @importFrom purrr pluck | ||
#' @importFrom janitor clean_names | ||
#' @importFrom dplyr mutate across mutate_all | ||
.tm_each_absence_page <- function(absence_page_url) { | ||
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absence_pg <- xml2::read_html(absence_page_url) | ||
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# get the main table, knowing that come columns won't be returned | ||
main_df <- absence_pg |> rvest::html_elements("#yw1 .items") |> rvest::html_table() |> data.frame() | ||
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if(nrow(main_df) > 0) { | ||
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# create an object of each table row and the col headings | ||
tab_rows <- absence_pg |> rvest::html_elements("#yw1 .items tbody tr") | ||
tab_head <- absence_pg |> rvest::html_elements("#yw1 .items tr th") |> rvest::html_text() | ||
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# index of columns we need to get extra html elements for | ||
competition_idx <- grep("competition", tolower(tab_head)) | ||
club_missed_idx <- grep("games missed", tolower(tab_head)) | ||
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# parse competiton name | ||
comp_name <- c() | ||
for(i in 1:length(tab_rows)) { | ||
each <- tab_rows[i] |> | ||
rvest::html_elements("td") |> | ||
purrr::pluck(competition_idx) |> | ||
rvest::html_elements("img") |> rvest::html_attr("title") |> | ||
.replace_empty_na() | ||
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comp_name <- c(comp_name, each) | ||
} | ||
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# parse team name | ||
club_name <- c() | ||
for(i in 1:length(tab_rows)) { | ||
each <- tab_rows[i] |> | ||
rvest::html_elements("td") |> | ||
purrr::pluck(club_missed_idx) |> | ||
rvest::html_elements("a") |> rvest::html_attr("title") |> | ||
.replace_empty_na() | ||
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club_name <- c(club_name, each) | ||
} | ||
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main_df$Competition <- comp_name | ||
main_df$club_missed <- club_name | ||
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main_df <- main_df |> | ||
dplyr::mutate_all(as.character) |> | ||
dplyr::mutate(dplyr::across(c("from", "until"), .tm_fix_dates)) |> | ||
janitor::clean_names() | ||
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} | ||
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return(main_df) | ||
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} | ||
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#' Get Player Absences | ||
#' | ||
#' Returns data frame of a player's absences from suspension from transfermarkt.com | ||
#' | ||
#' @param player_urls player url(s) from transfermarkt | ||
#' | ||
#' @return returns a dataframe | ||
#' | ||
#' @importFrom rlang .data | ||
#' | ||
#' @export | ||
#' | ||
#' @examples | ||
#' \dontrun{ | ||
#' try({ | ||
#' player_urls <- c("https://www.transfermarkt.com/cristian-romero/profil/spieler/355915", | ||
#' "https://www.transfermarkt.com/micky-van-de-ven/profil/spieler/557459") | ||
#' | ||
#' df <- tm_get_player_absence(player_urls) | ||
#' }) | ||
#' } | ||
#' | ||
tm_get_player_absence <- function(player_urls) { | ||
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.tm_each_players_absence <- function(player_url) { | ||
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pb$tick() | ||
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main_url <- "https://www.transfermarkt.com" | ||
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# # change the url to point to the absences url | ||
player_url_changed <- gsub("profil", "ausfaelle", player_url) | ||
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player_page <- xml2::read_html(player_url_changed) | ||
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player_name <- player_page %>% rvest::html_nodes("h1") %>% rvest::html_text() %>% gsub("#[0-9]+ ", "", .) %>% stringr::str_squish() | ||
player_meta <- data.frame(player_name = player_name, | ||
player_url = player_url) | ||
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absence_paginated <- player_page |> | ||
rvest::html_elements(".tm-pagination__list-item a") |> rvest::html_attr("href") |> | ||
unique() | ||
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if(length(absence_paginated) == 0) { | ||
absence_paginated <- player_url_changed | ||
} else { | ||
absence_paginated <- paste0(main_url, absence_paginated) | ||
} | ||
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f_possibly <- purrr::possibly(.tm_each_absence_page, otherwise = data.frame(), quiet = FALSE) | ||
player_out <- purrr::map_dfr( | ||
absence_paginated, | ||
f_possibly | ||
) | ||
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player_out <- dplyr::bind_cols(player_meta, player_out) | ||
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return(player_out) | ||
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} | ||
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# create the progress bar with a progress function. | ||
pb <- progress::progress_bar$new(total = length(player_urls)) | ||
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f_possibly2 <- purrr::possibly(.tm_each_players_absence, otherwise = data.frame(), quiet = FALSE) | ||
purrr::map_dfr( | ||
player_urls, | ||
f_possibly2 | ||
) | ||
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} | ||
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