tidypolars 0.10.1

Bug fixes

• Do not error when handling columns with datatype Null. Note that converting
  those columns to R with as.data.frame(), as_tibble(), or collect() is
  still an issue as of polars 0.19.1.

tidypolars 0.10.0

tidypolars requires polars >= 0.19.1.

Breaking changes and deprecations

• describe() is deprecated as of tidypolars 0.10.0 and will be removed in a
  future update. Use summary() with the same arguments instead (#127).

• describe_plan() and describe_optimized_plan() are deprecated as of
  tidypolars 0.10.0 and will be removed in a future update. Use explain() with
  optimized = TRUE/FALSE instead (#128).

• In sink_parquet() and sink_csv(), all arguments except for .data and
  path must be named (#136).

New features

• Add support for more functions:

  • from package base: substr().

• Better error message when a function can come from several packages but only
  one version is translated (#130).

• row_number() now works without argument (#131).

• New functions to import data as Polars DataFrames and LazyFrames (#136):

  • read_<format>_polars() to import data as a Polars DataFrame;
  • scan_<format>_polars() to import data as a Polars LazyFrame;
  • <format> can be "csv", "ipc", "json", "parquet".

  Those can replace functions from polars. For example,
  polars::pl$read_parquet(...) can be replaced by
  read_parquet_polars(...).

• New functions to write Polars DataFrames to external files:
  write_<format>_polars() where <format> can be "csv", "ipc", "json",
  "ndjson", "parquet" (#136).

• New function sink_ipc() that is similar to sink_parquet() and sink_csv()
  but for IPC files (#136).

• across() now throws a better error message when the user passes an external
  list to .fns. This works with dplyr but cannot work with tidypolars
  (#135).

• Added support for argument .add in group_by().

Bug fixes

• stringr::str_sub() now works when both start and end are negative.

• Fixed a bug in str_sub() when start was greater than 1.

• stringr::str_starts() and stringr::str_ends() now work with a regex.

• fill() doesn't error anymore when ... is empty. Instead, it returns the
  input data.

• unite() now provides a proper error message when col is missing.

• unite() doesn't error anymore when ... is empty. Instead, it uses all
  variables in the dataset.

• filter(), mutate() and summarize() now work when using a column from
  another data.frame, e.g.

  my_polars_df |> 
    filter(x %in% some_data_frame$y)

• replace_na() no longer converts the column to the datatype of the replacement,
  e.g. data |> replace_na("a") will error if the input data is numeric.

• n_distinct() now correctly applies the na.rm argument when several columns
  are passed as input (#137).

tidypolars 0.9.0

tidypolars requires polars >= 0.18.0.

New features

• Add support for several functions:

  • from package base: %% and %/%.

  • from package dplyr: dense_rank(), row_number().

  • from package lubridate: wday().

• Better handling of missing values to match R behavior. In the following
  functions, if there is at least one missing value and na.rm = FALSE (the
  default), then the output will be NA: max(), mean(), median(), min(),
  sd(), sum(), var() (#120).

• New argument cluster_with_columns in collect(), compute(), and fetch().

• Add a global option tidypolars_unknown_args to control what happens when
  tidypolars doesn't know how to handle an argument in a function. The default
  is to warn and the only other accepted value is "error".

Bug fixes

• count() and add_count() no longer overwrite a variable named n if the
  argument name is unspecified.

tidypolars 0.8.0

tidypolars requires polars >= 0.17.0.

Breaking changes

• As announced in tidypolars 0.7.0, the behavior of collect() has changed.
  It now returns a standard R data.frame and not a Polars DataFrame anymore.
  Replace collect() by compute() (with the same arguments) to keep the old
  behavior.

• In bind_rows_polars(), if .id is passed, the resulting column now is of
  type character instead of integer.

New features

• Add support for several functions:

  • from package base: all(), any(), diff(), ISOdatetime(),
    length(), rev(), unique().

  • from package dplyr: consecutive_id(), min_rank(), na_if(),
    n_distinct(), nth().

  • from package lubridate: make_datetime().

  • from package stringr: str_dup(), str_split(), str_split_i(),
    str_trunc().

  • from package tidyr: replace_na() (the data.frame method was already
    translated but not the vector one that can be used in mutate() for example).

• It is now possible to use explicit namespaces (such as dplyr::first() instead
  of first()) in mutate(), summarize() and filter() (#114).

• In bind_rows_polars(), if all elements are named and .id is specified, the
  .id column will use the names of the elements (#116).

• It is now possible to rename variables in select() (#117).

• Add support for argument na_matches in all join functions (except
  cross_join() that doesn't need it) (#109).

Bug fixes

• Local variables in custom functions could not be used in tidypolars functions
  (reported in a blog post of Art Steinmetz). This is now fixed.

• across() now works when .cols contains only one variable and .fns contains
  only one function.

• In across(), the .cols argument now takes into account variables created
  in the same mutate() or summarize() call before across().

  as_polars_df(mtcars) |> 
    head(n = 3) |> 
    mutate(
      foo = 1, 
      across(.cols = contains("oo"), \(x) x - 1)
    )
  
  shape: (3, 12)
  ┌──────┬─────┬───────┬───────┬───┬─────┬──────┬──────┬─────┐
  │ mpg  ┆ cyl ┆ disp  ┆ hp    ┆ … ┆ am  ┆ gear ┆ carb ┆ foo │
  │ ---  ┆ --- ┆ ---   ┆ ---   ┆   ┆ --- ┆ ---  ┆ ---  ┆ --- │
  │ f64  ┆ f64 ┆ f64   ┆ f64   ┆   ┆ f64 ┆ f64  ┆ f64  ┆ f64 │
  ╞══════╪═════╪═══════╪═══════╪═══╪═════╪══════╪══════╪═════╡
  │ 21.0 ┆ 6.0 ┆ 160.0 ┆ 110.0 ┆ … ┆ 1.0 ┆ 4.0  ┆ 4.0  ┆ 0.0 │
  │ 21.0 ┆ 6.0 ┆ 160.0 ┆ 110.0 ┆ … ┆ 1.0 ┆ 4.0  ┆ 4.0  ┆ 0.0 │
  │ 22.8 ┆ 4.0 ┆ 108.0 ┆ 93.0  ┆ … ┆ 1.0 ┆ 4.0  ┆ 1.0  ┆ 0.0 │
  └──────┴─────┴───────┴───────┴───┴─────┴──────┴──────┴─────┘

  Note that the where() function is not supported here. For example:

  as_polars_df(mtcars) |> 
    mutate(
      foo = 1, 
      across(.cols = where(is.numeric), \(x) x - 1)
    )

  will not return 0 for the variable foo. A warning is emitted about this
  behavior.

• Better handling of negative values in c() when called in mutate() and
  summarize().

tidypolars 0.7.0

tidypolars requires polars >= 0.16.0.

Breaking changes and deprecations

• as_polars() is now removed. It was deprecated in 0.6.0. Use as_polars_df()
  or as_polars_lf() instead.

• to_r() is now removed. It was deprecated in 0.6.0. Use as.data.frame()
  or as_tibble() instead.

• For consistency with dplyr, the behavior of collect() will change in 0.8.0
  as it will perform the lazy query and convert the result to a standard
  data.frame. For now, collect() only throws a warning about this future
  change. It is recommended to use compute() to only perform the query and get
  a Polars DataFrame as output (#101).

New features

• Several improvements and changes for pivot_wider() (#95):

  • names_from can now takes several variables;
  • add support for id_cols and names_glue;
  • default value of names_sep now is _, for consistency with tidyr;
  • fix documentation as pivot_wider() doesn't work on LazyFrame.

• Add support for stringr::regex(). Note that only the argument ignore_case
  is supported for now (#97).

• Add support for several lubridate functions: dweeks(), ddays(),
  dhours(), dminutes(), dseconds(), dmilliseconds(), make_date() (#107).

• When a polars function called internally fails, the original error message
  is now displayed.

• Add support for group_split() (for DataFrame only).

• Add support for argument relationship in left_join(), right_join(),
  full_join() and inner_join() (#106).

tidypolars 0.6.0

tidypolars requires polars >= 0.15.0.

Breaking changes and deprecations

• as_polars() is deprecated and will be removed in 0.7.0. Use as_polars_lf()
  or as_polars_df() instead.

• as_polars() doesn't have an argument with_string_cache anymore. When set
  to TRUE, this enabled the string cache globally, which could lead to
  undesirable side effects.

• to_r() is deprecated and will be removed in 0.7.0. Use as.data.frame() or
  as_tibble() instead. This used to silently return a LazyFrame if the
  input was LazyFrame. It now automatically collects the LazyFrame (#88).

• pull() nows automatically collects input LazyFrame (#89).

New features

• Add support for argument .keep in mutate() (#80).

• Add support for group_vars() and group_keys() (#81).

• Experimental support of rowwise(). For now, this is limited to a few
  functions: mean(), median(), min(), max(), sum(), all(), any().
  rowwise() and group_by() cannot be used at the same time (#40).

• All functions that return a polars Data/LazyFrame now add the class
  "tidypolars" to the output (#86).

• Support which.min(), which.max(), dplyr::n().

• Support .data[[ and .env[[ in addition to .data$ and .env$. Better
  error messages when the objects specified in .data or .env don't exist.

Bug fixes

• pull() now errors when var is of length > 1.

tidypolars 0.5.0

tidypolars requires polars >= 0.12.0.

Breaking changes

• across() now errors if the argument .cols is not provided (either named or
  unnamed). This behavior was deprecated in dplyr 1.1.0.

• It is no longer possible to use ! in arrange() to sort by decreasing order,
  for compatibility with dplyr::arrange(). Use - or desc() instead.

New features

• summarize() now works on ungrouped data and returns a 1-row output.

• It is now possible to use desc(x1) in arrange() to sort in decreasing
  order of x1 (this is equivalent to -x1).

• Add support for argument names_prefix in pivot_longer().

• Add support for arguments names_prefix and names_sep in pivot_wider().

• Add support for tidyr::uncount().

• All *_join() functions now work when by is a specification created by
  dplyr::join_by(). Notice that this is limited to equality joins for now.

• You can now use the "embrace" operator {{ }} to pass unquoted column names
  (among other things) as arguments of custom functions. See the "Programming
  with dplyr" vignette
  for some examples.

• bind_cols_polars() now works with two LazyFrames, but not more.

• Add support for argument .name_repair in bind_cols_polars() (#74).

• Support for .env$ and .data$ pronouns in expressions of filter(),
  mutate() and summarize().

• Support named vector in the argument pattern of str_replace_all(), where
  names are patterns and values are replacements.

• Using %in% for factor variables doesn't require enabling the string cache
  anymore.

Bug fixes

• summarize() no longer errors when across(everything(), ...) is used with
  .by.

• All *_join() functions no longer error when a named vector is provided in
  the argument by.

• Expressions with values only are not named "literal" anymore.

Misc

• Simplify the procedure to support new functions.

tidypolars 0.4.0

tidypolars requires polars >= 0.11.0.

Breaking changes

• It is no longer possible to pass a list in rename().

New features

• The argument with_string_cache in as_polars() now enables the string cache
  globally if set to TRUE (#54).

• Better error message in filter() when comparing factors to strings while the
  string cache is disabled.

• Basic support for strptime(). It is possible to use strptime(*, strict = FALSE)
  to not error when the parsing of some characters fails.

• New argument .by in filter(), mutate(), and summarize(), and new
  argument by in the slice_*() functions. This allows to do operations on
  groups without using group_by() and ungroup(). See the
  dplyr vignette for
  more information (#59).

• rename() now accepts unquoted names both old and new names.

• Support fixed regexes in str_detect() (using fixed()) and in grepl()
  (using fixed = TRUE).

Bug fixes

• Improve robustness of sequential expressions in mutate() and summarize()
  (i.e expressions that should be run one after the other because they depend on
  variables created in the same call) (#58).

• relocate() now works correctly when .after = last_col().

• All functions that work on grouped data now correctly restore the groups
  structure (#62).

Misc

• Error messages coming from mutate(), summarize(), and filter() now give
  the right function call.

• Faster tidy selection (#61).

tidypolars 0.3.0

tidypolars requires polars >= 0.10.0.

Breaking changes

• All functions starting with pl_ have been removed to the benefit of the S3
  methods. For example, pl_distinct() doesn't exist anymore so the only way to
  use it is to load dplyr and to use distinct() on a Polars DataFrame or
  LazyFrame. This is to avoid confusion about compatibility with dplyr and
  tidyr. See #49 for a more detailed explanation.

• pl_bind_rows() and pl_bind_cols() are renamed bind_rows_polars() and
  bind_cols_polars() respectively. This is because bind_rows() and bind_cols()
  are not S3 methods (this might change in future versions of dplyr).

New features

• New function duplicated_rows() that is the opposite of distinct() (#50).

• New argument .id in bind_rows_polars().

• bind_rows_polars() can now bind Data/LazyFrames that don't have the same
  schema. Columns will be upcast to common types if necessary. Unknown columns
  will be filled with NA.

Bug fixes

• complete() now works correctly on grouped data.

Misc

• relig_income and fish_encounters are not reexported anymore since tidyr
  is now imported.

tidypolars 0.2.0

tidypolars requires polars >= 0.9.0.

New features

• Rename pl_fetch() to fetch().

• New functions supported: describe(), sink_csv(), slice_sample().

• New argument fill in pl_complete().

• Support stringr::str_to_title() and tools::toTitleCase().

• Support stringr::fixed() to use literal strings.

• Support replacements with captured groups like \\1 in stringr::str_replace()
  and stringr::str_replace_all().

Bug fixes

• sink_parquet() didn't use the user inputs (apart from the path).

Misc

• Clearer error message when an expression contains <pkg>::. This is not
  supported for now but could potentially be implemented later.

• pl_colnames() is no longer exported.