EpiForsk (version 0.2.0)

braid_rows: Bind lists of list of multiple data frames by row

Description

Row binds the matching innermost data frames in a list of lists. This is essentially a list inversion purrr::list_transpose() with row-binding dplyr::bind_rows()

Usage

braid_rows(list)

Value

A list of data.frames with the combined information from the inputted list.

Arguments

list

A list of lists of data.frames where matching innermost elements must be bound together row-wise.

Examples

# A simple example
lst <- lapply(1:5, function(x) {
  list(
    "A" = data.frame("first" = x, "second" = rnorm(x)),
    "B" = data.frame("info" = 1, "other" = 3)
  )
})
braid_rows(lst)

# An example with an additional layer and jagged innermost info
lapply(c(28, 186, 35), function(len) {
  lapply(c("a", "b"), function(x) {
    res <- list(
      "descriptive" = data.frame(
         risk = len,
         event = x,
         var = 1,
         other = 2
       ),
      "results" = data.frame(
         risk = len,
         event = x,
         important = 4:7,
         new = 3:6
      )
    )
    if (len < 30) {
      res <- c(res, list("additional" = data.frame(helps = "extra data")))
    }
    return(res)
  }) |> braid_rows()
}) |> braid_rows()