f_fill: Fill 'NA' values forwards and backwards
In fastplyr: Fast Alternatives to 'tidyverse' Functions

f_fill

R Documentation

Fill `NA` values forwards and backwards

Fill NA values forwards and backwards

f_fill(
  data,
  ...,
  .by = NULL,
  .cols = NULL,
  .direction = c("forwards", "backwards"),
  .fill_limit = Inf,
  .new_names = "{.col}"
)

`data`	A data frame.
`...`	Cols to fill `NA` values specified through `tidyselect` notation. If left empty all cols are used by default.
`.by`	Cols to group by for this operation. Specified through `tidyselect`.
`.cols`	(Optional) alternative to `...` that accepts a named character vector or numeric vector. If speed is an expensive resource, it is recommended to use this.
`.direction`	Which direction should `NA` values be filled? By default, "forwards" (Last-Observation-Carried-Forward) is used. "backwards" is (Next-Observation-Carried-Backward).
`.fill_limit`	The maximum number of consecutive `NA` values to fill. Default is `Inf`.
`.new_names`	A name specification for the names of filled variables. The default `"{.col}"` replaces the given variables with the imputed ones. New variables can be created alongside the originals if we give a different specification, e.g. `.new_names = "{.col}_imputed"`. This follows the specification of `dplyr::across` if `.fns` were an empty string `""`.