tests/testthat/_snaps/nest.md

In tidyverse/tidyr: Tidy Messy Data

nest disallows renaming

Code
  nest(df, data = c(a = x))
Condition
  Error in `nest()`:
  ! In expression named `data`:
  Caused by error:
  ! Can't rename variables in this context.

Code
  nest(df, .by = c(a = x))
Condition
  Error in `nest()`:
  ! Can't rename variables in this context.

catches when ... overwrites an existing column

Code
  nest(df, x = y)
Condition
  Error in `nest()`:
  ! Names must be unique.
  x These names are duplicated:
    * "x" at locations 1 and 2.

validates its inputs

Code
  nest(df, y = ya:yb, .names_sep = 1)
Condition
  Error in `nest()`:
  ! `.names_sep` must be a single string or `NULL`, not the number 1.

Code
  nest(df, y = ya:yb, .key = 1)
Condition
  Error in `nest()`:
  ! `.key` must be a single string, not the number 1.

warns if .key is supplied alongside ...

Code
  out <- nest_info(df, data = 2, .key = "foo")
Condition
  Warning:
  Can't supply both `.key` and `...`.
  i `.key` will be ignored.

Code
  out <- nest(df, data = 2, .key = "foo")
Condition
  Warning in `nest()`:
  Can't supply both `.key` and `...`.
  i `.key` will be ignored.

.by isn't allowed for grouped data frames

Code
  nest(df, .by = x)
Condition
  Error in `nest()`:
  ! Can't supply `.by` when `.data` is a grouped data frame.

warn about old style interface

Code
  out <- nest(df, y)
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `data = y`?

Code
  out <- nest(df, -y)
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `data = -y`?

can use .by with old style interface

Code
  out <- nest(df, y, .by = x)
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `data = y`?

Code
  out <- nest(df, y, .by = x, .key = "foo")
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `foo = y`?

only warn about unnamed inputs (#1175)

Code
  out <- nest(df, x, y, foo = z)
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `data = c(x, y)`?

unnamed expressions are kept in the warning

Code
  out <- nest(df, x, starts_with("z"))
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `data = c(x, starts_with("z"))`?

can control output column name

Code
  out <- nest(df, y, .key = "y")
Condition
  Warning:
  Supplying `...` without names was deprecated in tidyr 1.0.0.
  i Please specify a name for each selection.
  i Did you want `y = y`?

.key gets warning with new interface

Code
  out <- nest(df, y = y, .key = "foo")
Condition
  Warning in `nest()`:
  Can't supply both `.key` and `...`.
  i `.key` will be ignored.

tidyverse/tidyr documentation built on Oct. 30, 2024, 1:53 a.m.