./math/R-tidyr, Easily tidy data with spread() and gather() functions

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Branch: CURRENT, Version: 1.3.0, Package name: R-tidyr-1.3.0, Maintainer: pkgsrc-users

An evolution of 'reshape2'. It's designed specifically for data
tidying (not general reshaping or aggregating) and works well with
'dplyr' data pipelines.

Required to run:
[math/R] [devel/R-Rcpp] [textproc/R-stringi] [devel/R-magrittr] [devel/R-rlang] [math/R-tibble] [devel/R-glue] [devel/R-purrr] [devel/R-tidyselect]

Required to build:

Master sites: (Expand)

Version history: (Expand)

CVS history: (Expand)

   2023-07-03 14:44:50 by Thomas Klausner | Files touched by this commit (1)
Log message:
R-tidyr: fix DEPENDS line
   2023-06-13 13:26:27 by Makoto Fujiwara | Files touched by this commit (1)
Log message:
(math/R-tidyr) Fix build,  +DEPENDS+=    R-stringr>=1.5.0
   2023-06-07 14:05:50 by Makoto Fujiwara | Files touched by this commit (2)
Log message:
(math/R-tidyr) Updated 1.2.1 to 1.3.0

# tidyr 1.3.0

## New features

* New family of consistent string separating functions:
  `separate_wider_delim()`, `separate_wider_position()`,
  `separate_wider_regex()`, `separate_longer_delim()`, and
  `separate_longer_position()`. These functions are thorough refreshes of
  `separate()` and `extract()`, featuring improved performance, greater
  consistency, a polished API, and a new approach for handling problems. They
  use stringr and supersede `extract()`, `separate()`, and `separate_rows()`

* `nest()` gains a `.by` argument which allows you to specify the columns to
  nest by (rather than the columns to nest, i.e. through `...`). Additionally,
  the `.key` argument is no longer deprecated, and is used whenever `...` isn't
  specified (#1458).

* `unnest_longer()` gains a `keep_empty` argument like `unnest()` (#1339).

* `pivot_longer()` gains a `cols_vary` argument for controlling the ordering of
  the output rows relative to their original row number (#1312).

* New datasets `who2`, `household`, `cms_patient_experience`, and
  `cms_patient_care` to demonstrate various tidying challenges (#1333).

## Breaking changes

* The `...` argument of both `pivot_longer()` and `pivot_wider()` has been
  moved to the front of the function signature, after the required arguments
  but before the optional ones. Additionally, `pivot_longer_spec()`,
  `pivot_wider_spec()`, `build_longer_spec()`, and `build_wider_spec()` have
  all gained `...` arguments in a similar location. This change allows us to
  more easily add new features to the pivoting functions without breaking
  existing CRAN packages and user scripts.

  `pivot_wider()` provides temporary backwards compatible support for the case
  of a single unnamed argument that previously was being positionally matched to
  `id_cols`. This one special case still works, but will throw a warning
  encouraging you to explicitly name the `id_cols` argument.

  To read more about this pattern, see
  [Data, dots, details](https://design.tidyverse.org/dots-position.html) in the
  tidyverse design guide (#1350).

## Lifecycle changes

* All functions deprecated in tidyr 1.0 and 1.2 (the old lazyeval functions
  ending in `_` and various arguments to `unnest()`) now warn on every use.
  They will be made defunct in 2024 (#1406).

## Rectangling

* `unnest_longer()` now consistently drops rows with either `NULL` or empty
  vectors (like `integer()`) by default. Set the new `keep_empty` argument to
  `TRUE` to retain them. Previously, `keep_empty = TRUE` was implicitly being
  used for `NULL`, while `keep_empty = FALSE` was being used for empty vectors,
  which was inconsistent with all other tidyr verbs with this argument (#1363).

* `unnest_longer()` now uses `""` in the index column for fully unnamed
  vectors. It also now consistently uses `NA` in the index column for empty
  vectors that are "kept" by `keep_empty = TRUE` (#1442).

* `unnest_wider()` now errors if any values being unnested are unnamed and
  `names_sep` is not provided (#1367).

* `unnest_wider()` now generates automatic names for _partially_ unnamed
  vectors. Previously it only generated them for fully unnamed vectors,
  resulting in a strange mix of automatic names and name-repaired names (#1367).

## Bug fixes and minor improvements

### General

* Most tidyr functions now consistently disallow renaming during tidy-selection.
  Renaming was never meaningful in these functions, and previously either had no
  effect or caused problems (#1449, #1104).

* tidyr errors (including input validation) have been thoroughly reviewed
  and should generally be more likely to point you in the right direction
  (#1313, #1400).

* `uncount()` is now generic so implementations can be provided for objects
  other than data frames (@mgirlich, #1358).

* `uncount()` gains a `...` argument. It comes between the required and the
  optional arguments (@mgirlich, #1358).

* `nest()`, `complete()`, `expand()`, and `fill()` now document their support
  for grouped data frames created by `dplyr::group_by()` (#952).

* All built in datasets are now standard tibbles (#1459).

* R >=3.4.0 is now required, in line with the tidyverse standard of supporting
  the previous 5 minor releases of R.

* rlang >=1.0.4 and vctrs >=0.5.2 are now required (#1344, #1470).

* Removed dependency on ellipsis in favor of equivalent functions in rlang

### Nesting, packing, and chopping

* `unnest()`, `unchop()`, `unnest_longer()`, and `unnest_wider()` better handle
  lists with additional classes (#1327).

* `pack()`, `unpack()`, `chop()`, and `unchop()` all gain an `error_call`
  argument, which in turn improves some of the error calls shown in `nest()`
  and various `unnest()` adjacent functions (#1446).

* `chop()`, `unpack()`, and `unchop()` all gain `...`, which must be empty

* `unpack()` does a better job of reporting column name duplication issues and
  gives better advice about how to resolve them using `names_sep`. This also
  improves errors from functions that use `unpack()`, like `unnest()` and
  `unnest_wider()` (#1425, #1367).

### Pivoting

* `pivot_longer()` no longer supports interpreting `values_ptypes = list()`
  and `names_ptypes = list()` as `NULL`. An empty `list()` is now interpreted as
  a `<list>` prototype to apply to all columns, which is consistent with \ 
how any
  other 0-length value is interpreted (#1296).

* `pivot_longer(values_drop_na = TRUE)` is faster when there aren't any missing
  values to drop (#1392, @mgirlich).

* `pivot_longer()` is now more memory efficient due to the usage of
  `vctrs::vec_interleave()` (#1310, @mgirlich).

* `pivot_longer()` now throws a slightly better error message when
  `values_ptypes` or `names_ptypes` is provided and the coercion can't be made

* `pivot_wider()` now throws a better error message when a column selected by
  `names_from` or `values_from` is also selected by `id_cols` (#1318).

* `pivot_wider()` is now faster when `names_sep` is provided (@mgirlich, #1426).

* `pivot_longer_spec()`, `pivot_wider_spec()`, `build_longer_spec()`, and
  `build_wider_spec()` all gain an `error_call` argument, resulting in better
  error reporting in `pivot_longer()` and `pivot_wider()` (#1408).

### Missing values

* `fill()` now works correctly when there is a column named `.direction` in
  `data` (#1319, @tjmahr).

* `replace_na()` is faster when there aren't any missing values to replace
  (#1392, @mgirlich).

* The documentation of the `replace` argument of `replace_na()` now mentions
  that `replace` is always cast to the type of `data` (#1317).
   2022-12-18 15:17:14 by Makoto Fujiwara | Files touched by this commit (2)
Log message:
(math/R-tidyr) Updated 1.2.0 to 1.2.1

# tidyr 1.2.1

* Hot patch release to resolve R CMD check failures.
   2022-05-01 18:10:16 by Makoto Fujiwara | Files touched by this commit (2) | Package updated
Log message:
(math/R-tidyr) Updated 1.1.3 to 1.2.0

# tidyr 1.2.0

## Pivoting

* `pivot_wider()` gains new `names_expand` and `id_expand` arguments for turning
  implicit missing factor levels and variable combinations into explicit ones.
  This is similar to the `drop` argument from `spread()` (#770).

* `pivot_wider()` gains a new `names_vary` argument for controlling the
  ordering when combining `names_from` values with `values_from` column names

* `pivot_wider()` gains a new `unused_fn` argument for controlling how to
  summarize unused columns that aren't involved in the pivoting process (#990,
  thanks to @mgirlich for an initial implementation).

* `pivot_longer()`'s `names_transform` and `values_transform` arguments now
  accept a single function which will be applied to all of the columns
  (#1284, thanks to @smingerson for an initial implementation).

* `pivot_longer()`'s `names_ptypes` and `values_ptypes` arguments now
  accept a single empty ptype which will be applied to all of the columns

## Nesting

* `unnest()` and `unchop()`'s `ptype` argument now accepts a single empty
  ptype which will be applied to all `cols` (#1284).

* `unpack()` now silently skips over any non-data frame columns specified by
  `cols`. This matches the existing behavior of `unchop()` and `unnest()`

## Rectangling

* `unnest_wider()` and `unnest_longer()` can now unnest multiple columns at
  once (#740).

* `unnest_longer()`'s `indices_to` and `values_to` arguments now accept
  a glue specification, which is useful when unnesting multiple columns.

* For `hoist()`, `unnest_longer()`, and `unnest_wider()`, if a `ptype` is
  supplied, but that column can't be simplified, the result will be a list-of
  column where each element has type `ptype` (#998).

* `unnest_wider()` gains a new `strict` argument which controls whether or not
  strict vctrs typing rules should be applied. It defaults to `FALSE` for
  backwards compatibility, and because it is often more useful to be lax
  when unnesting JSON, which doesn't always map one-to-one with R's types

* `hoist()`, `unnest_longer()`, and `unnest_wider()`'s `simplify` argument now
  accepts a named list of `TRUE` or `FALSE` to control simplification on a per
  column basis (#995).

* `hoist()`, `unnest_longer()`, and `unnest_wider()`'s `transform` argument now
  accepts a single function which will be applied to all components (#1284).

* `hoist()`, `unnest_longer()`, and `unnest_wider()`'s `ptype` argument now
  accepts a single empty ptype which will be applied to all components (#1284).

## Grids

* `complete()` gains a new `explicit` argument for limiting `fill` to only
  implicit missing values. This is useful if you don't want to fill in
  pre-existing missing values (#1270).

* `complete()` gains a grouped data frame method. This generates a more correct
  completed data frame when groups are involved (#396, #966).

* `complete()` and `expand()` no longer allow you to complete or expand on a
  grouping column. This was never well-defined since completion/expansion on a
  grouped data frame happens "within" each group and otherwise has the
  potential to produce erroneous results (#1299).

## Missing values

* `drop_na()`, `replace_na()`, and `fill()` have been updated to utilize vctrs.
  This means that you can use these functions on a wider variety of column
  types, including lubridate's Period types (#1094), data frame columns, and
  the [rcrd](https://vctrs.r-lib.org/reference/new_rcrd.html) type from vctrs.

* `replace_na()` no longer allows the type of `data` to change when the
  replacement is applied. `replace` will now always be cast to the type of
  `data` before the replacement is made. For example, this means that using a
  replacement value of `1.5` on an integer column is no longer allowed.
  Similarly, replacing missing values in a list-column must now be done with
  `list("foo")` rather than just `"foo"`.

* `replace_na()` no longer replaces empty atomic elements in list-columns
  (like `integer(0)`). The only value that is replaced in a list-column is
  `NULL` (#1168).

* `drop_na()` no longer drops empty atomic elements from list-columns
  (like `integer(0)`). The only value that is dropped in a list-column is
  `NULL` (#1228).

## Bug fixes and minor improvements

### General

* @mgirlich is now a tidyr author in recognition of his significant and
  sustained contributions.

* All lazyeval variants of tidyr verbs have been soft-deprecated. Expect them
  to move to the defunct stage in the next minor release of tidyr (#1294).

* `any_of()` and `all_of()` from tidyselect are now re-exported (#1217).

* dplyr >= 1.0.0 is now required.

### Pivoting

* `pivot_wider()` now gives better advice about how to identify duplicates when
  values are not uniquely identified (#1113).

* `pivot_wider()` now throws a more informative error when `values_fn` doesn't
  result in a single summary value (#1238).

* `pivot_wider()` and `pivot_longer()` now generate more informative
  errors related to name repair (#987).

* `pivot_wider()` now works correctly when `values_fill` is a data frame.

* `pivot_wider()` no longer accidentally retains `values_from` when pivoting
  a zero row data frame (#1249).

* `pivot_wider()` now correctly handles the case where an id column name
  collides with a value from `names_from` (#1107).

* `pivot_wider()` and `pivot_longer()` now both check that the spec columns
  `.name` and `.value` are character vectors. Additionally, the `.name`
  column must be unique (#1107).

* `pivot_wider()`'s `names_from` and `values_from` arguments are now
  required if their default values of `name` and `value` don't correspond to
  columns in `data`. Additionally, they must identify at least 1 column
  in `data` (#1240).

* `pivot_wider()`'s `values_fn` argument now correctly allows anonymous
  functions (#1114).

* `pivot_wider_spec()` now works correctly with a 0-row data frame and a `spec`
  that doesn't identify any rows (#1250, #1252).

* `pivot_longer()`'s `names_ptypes` argument is now applied after
  `names_transform` for consistency with the rectangling functions
  (i.e. `hoist()`) (#1233).

* `check_pivot_spec()` is a new developer facing function for validating a pivot
  `spec` argument. This is only useful if you are extending `pivot_longer()` or
  `pivot_wider()` with new S3 methods (#1087).

### Nesting

* The `nest()` generic now avoids computing on `.data`, making it more
  compatible with lazy tibbles (#1134).

* The `.names_sep` argument of the data.frame method for `nest()` is now
  actually used (#1174).

* `unnest()`'s `ptype` argument now works as expected (#1158).

* `unpack()` no longer drops empty columns specified through `cols` (#1191).

* `unpack()` now works correctly with data frame columns containing 1 row but
  0 columns (#1189).

* `chop()` now works correctly with data frames with 0 rows (#1206).

* `chop()`'s `cols` argument is no longer optional. This matches the
  behavior of `cols` seen elsewhere in tidyr (#1205).

* `unchop()` now respects `ptype` when unnesting a non-list column (#1211).

### Rectangling

* `hoist()` no longer accidentally removes elements that have duplicated names

### Grids

* The grouped data frame methods for `complete()` and `expand()` now move the
  group columns to the front of the result (in addition to the columns you
  completed on or expanded, which were already moved to the front). This should
  make more intuitive sense, as you are completing or expanding \ 
"within" each
  group, so the group columns should be the first thing you see (#1289).

* `complete()` now applies `fill` even when no columns to complete are
  specified (#1272).

* `expand()`, `crossing()`, and `nesting()` now correctly retain `NA` values of
  factors (#1275).

* `expand_grid()`, `expand()`, `nesting()`, and `crossing()` now silently
  apply name repair to automatically named inputs. This avoids a number of
  issues resulting from duplicate truncated names
  (#1116, #1221, #1092, #1037, #992).

* `expand_grid()`, `expand()`, `nesting()`, and `crossing()` now allow
  columns from unnamed data frames to be used in expressions after that
  data frame was specified, like `expand_grid(tibble(x = 1), y = x)`. This
  is more consistent with how `tibble()` behaves.

* `expand_grid()`, `expand()`, `nesting()`, and `crossing()` now work
  correctly with data frames containing 0 columns but >0 rows (#1189).

* `expand_grid()`, `expand()`, `nesting()`, and `crossing()` now return a 1
  row data frame when no inputs are supplied, which is more consistent with
  `prod() == 1L` and the idea that computations involving the number of
  combinations computed from an empty set should return 1 (#1258).

### Missing values

* `drop_na()` no longer drops missing values from all columns when a tidyselect
  expression that results in 0 columns being selected is used (#1227).

* `fill()` now treats `NaN` like any other missing value (#982).

# tidyr 1.1.4

* `expand_grid()` is now about twice as fast and `pivot_wider()` is a bit faster
  (@mgirlich, #1130).

* `unchop()` is now much faster, which propagates through to various functions,
  such as `unnest()`, `unnest_longer()`, `unnest_wider()`, and
  `separate_rows()` (@mgirlich, @DavisVaughan, #1127).

* `unnest()` is now much faster (@mgirlich, @DavisVaughan, #1127).

* `unnest()` no longer allows unnesting a list-col containing a mix of vector
  and data frame elements. Previously, this only worked by accident, and is
  considered an off-label usage of `unnest()` that has now become an error.
   2021-10-26 12:56:13 by Nia Alarie | Files touched by this commit (458)
Log message:
math: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes
   2021-10-07 16:28:36 by Nia Alarie | Files touched by this commit (458)
Log message:
math: Remove SHA1 hashes for distfiles
   2021-09-18 16:01:44 by Makoto Fujiwara | Files touched by this commit (2) | Package updated
Log message:
(math/R-tidyr) Updated 1.0.2 to 1.1.3

# tidyr 1.1.3

* tidyr verbs no longer have "default" methods for lazyeval fallbacks. This
  means that you'll get clearer error messages (#1036).

* `uncount()` error for non-integer weights and gives a clearer error message
  for negative weights (@mgirlich, #1069).

* You can once again unnest dates (#1021, #1089).

* `pivot_wider()` works with data.table and empty key variables (@mgirlich, #1066).

* `separate_rows()` works for factor columns (@mgirlich, #1058).

# tidyr 1.1.2

* `separate_rows()` returns to 1.1.0 behaviour for empty strings
  (@rjpatm, #1014).

# tidyr 1.1.1

* New tidyr logo!

* stringi dependency has been removed; this was a substantial dependency that
  make tidyr hard to compile in resource constrained environments
  (@rjpat, #936).

* Replace Rcpp with cpp11. See \ 
  for reasons why.

# tidyr 1.1.0

## General features

* `pivot_longer()`, `hoist()`, `unnest_wider()`, and `unnest_longer()` gain
  new `transform` arguments; these allow you to transform values "in \ 
  They are partly needed because vctrs coercion rules have become stricter,
  but they give you greater flexibility than was available previously (#921).

* Arguments that use tidy selection syntax are now clearly documented and
  have been updated to use tidyselect 1.1.0 (#872).

## Pivoting improvements

* Both `pivot_wider()` and `pivot_longer()` are considerably more performant,
  thanks largely to improvements in the underlying vctrs code
  (#790, @DavisVaughan).

* `pivot_longer()` now supports `names_to = character()` which prevents the
  name column from being created (#961).

    df <- tibble(id = 1:3, x_1 = 1:3, x_2 = 4:6)
    df %>% pivot_longer(-id, names_to = character())

* `pivot_longer()` no longer creates a `.copy` variable in the presence of
  duplicate column names. This makes it more consistent with the handling
  of non-unique specs.

* `pivot_longer()` automatically disambiguates non-unique ouputs, which can
  occur when the input variables include some additional component that you
  don't care about and want to discard (#792, #793).

    df <- tibble(id = 1:3, x_1 = 1:3, x_2 = 4:6)
    df %>% pivot_longer(-id, names_pattern = "(.)_.")
    df %>% pivot_longer(-id, names_sep = "_", names_to = \ 
c("name", NA))
    df %>% pivot_longer(-id, names_sep = "_", names_to = \ 
c(".value", NA))

* `pivot_wider()` gains a `names_sort` argument which allows you to sort
  column names in order. The default, `FALSE`, orders columms by their
  first appearance (#839). In a future version, I'll consider changing the
  default to `TRUE`.

* `pivot_wider()` gains a `names_glue` argument that allows you to construct
  output column names with a glue specification.

* `pivot_wider()` arguments `values_fn` and `values_fill` can now be single
  values; you now only need to use a named list if you want to use different
  values for different value columns (#739, #746). They also get improved
  errors if they're not of the expected type.

## Rectangling

* `hoist()` now automatically names pluckers that are a single string (#837).
  It error if you use duplicated column names (@mgirlich, #834), and now uses
  `rlang::list2()` behind the scenes (which means that you can now use `!!!`
  and `:=`) (#801).

* `unnest_longer()`, `unnest_wider()`, and `hoist()` do a better job
  simplifying list-cols. They no longer add unneeded `unspecified()` when
  the result is still a list (#806), and work when the list contains
  non-vectors (#810, #848).

* `unnest_wider(names_sep = "")` now provides default names for \ 
unnamed inputs,
  suppressing the many previous name repair messages (#742).

## Nesting

* `pack()` and `nest()` gains a `.names_sep` argument allows you to strip outer
  names from inner names, in symmetrical way to how the same argument to
  `unpack()` and `unnest()` combines inner and outer names (#795, #797).

* `unnest_wider()` and `unnest_longer()` can now unnest `list_of` columns. This
  is important for unnesting columns created from `nest()` and with
  `pivot_wider()`, which will create `list_of` columns if the id columns are
  non-unique (#741).

## Bug fixes and minor improvements

* `chop()` now creates list-columns of class `vctrs::list_of()`. This helps
  keep track of the type in case the chopped data frame is empty, allowing
  `unchop()` to reconstitute a data frame with the correct number and types
  of column even when there are no observations.

* `drop_na()` now preserves attributes of unclassed vectors (#905).

* `expand()`, `expand_grid()`, `crossing()`, and `nesting()` once again
  evaluate their inputs iteratively, so you can refer to freshly created
  columns, e.g. `crossing(x = seq(-2, 2), y = x)` (#820).

* `expand()`, `expand_grid()`, `crossing()`, and `nesting()` gain a
  `.name_repair` giving you control over their name repair strategy
  (@jeffreypullin, #798).

* `extract()` lets you use `NA` in `into`, as documented (#793).

* `extract()`, `separate()`, `hoist()`, `unnest_longer()`, and `unnest_wider()`
  give a better error message if `col` is missing (#805).

* `pack()`'s first argument is now `.data` instead of `data` (#759).

* `pivot_longer()` now errors if `values_to` is not a length-1 character vector

* `pivot_longer()` and `pivot_wider()` are now generic so implementations
  can be provided for objects other than data frames (#800).

* `pivot_wider()` can now pivot data frame columns (#926)

* `unite(na.rm = TRUE)` now works for all types of variable, not just character
  vectors (#765).

* `unnest_wider()` gives a better error message if you attempt to unnest
  multiple columns (#740).

* `unnest_auto()` works when the input data contains a column called `col`