将 df 转换为单独的观察结果[重复]

我想将 df 从“计数”方法（案例数量）转变为“单独观察”方法。

Example:

df <- dplyr::tibble(
  city = c("a", "a", "b", "b", "c", "c"), 
  sex = c(1,0,1,0,1,0),
  age = c(1,2,1,2,1,2),
  cases = c(2, 3, 1, 1, 1, 1))

预期结果

df <- dplyr::tibble(
  city = c("a","a","a","a","a", "b", "b", "c", "c"), 
  sex = c(1,1,0,0,0,1,0,1,0),
  age = c(1,1,2,2,2,1,2,1,2))

uncount() from tidyr可以为你做到这一点。

df |> tidyr::uncount(cases)