Information about team franchises
A data frame with 120 observations on the following 4 variables.
Franchise ID; a factor
Whether team is currently active (Y or N)
ID of National Association team franchise played as
Lahman, S. (2021) Lahman's Baseball Database, 1871-2020, 2020 version, https://www.seanlahman.com/baseball-archive/statistics/
data(TeamsFranchises) # Which of the active Major League Baseball teams had a National Association predecessor? # Notes: # - the National Association was founded in 1871, and continued through the # 1875 season. In 1876, six clubs from the National Association and two other # independent clubs formed the National League, which exists to this day. # - the `active` field has "NA" for the National Association franchises # - where appropriate, the `NAassoc` field has the `franchID` of the successor National League team # using the dplyr data manipulation package library("dplyr") NatAssoc_active_table <- TeamsFranchises %>% filter(active == "Y") %>% filter(!is.na(NAassoc)) NatAssoc_active_table # Merge current team IDs with franchise IDs currentTeams <- Teams %>% filter(yearID == 2014) %>% select(teamID, franchID, lgID, park) # Merge TeamsFranchises with currentTeams TeamsFranchises %>% filter(active == "Y") %>% select(-active, -NAassoc) %>% left_join(currentTeams, by = "franchID")
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