NEWS.md

In fastplyr: Fast Alternatives to 'tidyverse' Functions

fastplyr 0.9.0

New features

Many common expressions, such as sum(), mean() and many others have been optimised in functions like f_summarise(). For a current list of optimised functions, see ?f_summarise.

• f_mutate as an alternative to mutate

• f_reframe as an alternative to reframe

• Fast group metadata helper functions f_group_data, f_group_indices, f_group_keys, f_group_rows, f_group_size and f_n_groups.

Bug fixes

• Joins involving columns of non-standard vectors would sometimes fail to join correctly in rare circumstances. This has now been fixed.

fastplyr 0.5.1

• Small bug fix when f_summarise calculates means and medians for zero-row data frames with integer variables.

• R 4.0.0 now required.

fastplyr 0.5.0

Bug fixes

• Fix for f_summarise returning results in the incorrect order.

Breaking changes

• Previously soft-deprecated arguments have now been removed.

New features

• New function list_tidy as an alternative to list that evaluates arguments dynamically with a focus on setting precedence for objects created in the list over environment objects.

• new_tbl now evaluates its arguments dynamically. f_expand also evaluates its argument dynamically unless the data is grouped and the expressions supplied aren't simply column selections.

• New function f_pull as a fast convenience function for extracting vectors from columns.

• New functions remove_rows_if_any_na and remove_rows_if_all_na.

• f_arrange gains the .descending argument to efficiently return data frames in descending order.

fastplyr 0.4.0

New features

• New function f_fill to fill NA values forwards and backwards by group.

Improvements

• f_bind_rows sees a noticeable speed improvement.

Bug fixes

• f_summarise now returns results in the correct order when both multiple cols and multiple optimised functions were specified.

• Joins were returning an error when x and y are grouped_df objects.

• The join by argument now accepts a partial named character vector without throwing an error.

• tidy_quantiles would return an error when probabilities were not sorted and has now been fixed.

Breaking changes

• The seed argument of f_slice_sample is soft-deprecated. To achieve sampling, or really any RNG functions with a local seed, use cheapr::with_local_seed().

fastplyr 0.3.0

• tidy_quantiles gains dramatic speed and efficiency improvements.

• The order and sort arguments for data frame functions have been superseded in favour of .order and .sort.

• New argument .order added to both f_summarise and tidy_quantiles to allow for controlling the order of groups.

• rowwise_df is now explicitly unsupported. To group by row, use f_rowwise.

• New functions f_nest_by, f_rowwise and add_consecutive_id.

fastplyr 0.2.0

• A few bug fixes including:
• f_bind_rows was not working when supplied with more than 2 data frames in some cases.
• f_summarise was not working when supplied with non-function expressions.

• A rare bug that caused R to crash has now been likely fixed.

• f_bind_cols now recycles its arguments and converts non-data frames to data frames to allow for joining variables as if they were columns.

• Fixed a bug in the f_join functions where incorrect matches were occurring when the columns being joined on are 'exotic' variables, e.g. lists, lubridate 'Intervals', etc. Currently fastplyr uses a proxy method to join these kinds of variables through the use of group_id. This was not being applied correctly for joined exotic variables and should now be fixed.

• New function f_consecutive_id as an alternative to dplyr::consecutive_id.

fastplyr 0.1.0 (12-Sep-2024)

• Initial CRAN submission.

fastplyr documentation built on June 8, 2025, 11:18 a.m.