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R関数入門

Richie Cotton

Data Evangelist at DataCamp

幾何平均の計算

x %>%
  log() %>%
  mean() %>%
  exp()

calc_geometric_mean <- function(x) {
  x %>%
    log() %>%
    mean() %>%
    exp()
}

calc_geometric_mean <- function(x, na.rm = FALSE) {
  x %>%
    log() %>%
    mean(na.rm = na.rm) %>%
    exp()
}

calc_geometric_mean <- function(x, ...) {
  x %>%
    log() %>%
    mean(...) %>%
    exp()
}

R関数入門