filter_in_sub: Filter within nested data frames
In burchill/zplyr: Zach Burchill's Personal Functions

filter_in_sub

R Documentation

Filter within nested data frames

Applies filter within nested data frames.

filter_in_sub(
  df,
  data_col_name,
  ...,
  handle_nulls = FALSE,
  drop_empty = FALSE,
  scoped_in = TRUE
)

`df`	A data frame / tibble
`data_col_name`	The column name of the nested data frames, bare or as a string.
`...`	Logical predicates defined in terms of the variables in `df`. Multiple conditions are combined with `&`. Only rows where the condition evaluates to `TRUE` are kept. See `filter` for more information.
`handle_nulls`	If `TRUE`, drops rows with `NULL` data frames. Otherwise will throw an error if they are encountered.
`drop_empty`	If `TRUE`, will drop rows that, after filtering, have no rows.
`scoped_in`	A boolean indicating whether the summary functions are scoped within the nested data frames alone (`TRUE`) or whether they also have access to the higher-level data frame. Changing this value can radically change the behavior.

A data frame / tibble