Tidy Verbs for Fast Data Manipulation
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Documentation for package ‘tidyfst’ version 1.7.9
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A C D E F G I J L M N O P R S T U W
-- A --
| add_count_dt | Count observations by group |
| add_prop | Add percentage to counts in data.frame |
| anti_join_dt | Join tables |
| arrange_dt | Arrange entries in data.frame |
| as_dt | Short cut to data.table |
| as_fst | Save a data.frame as a fst table |
-- C --
| chop_dt | Nest and unnest |
| col_max | Get the column name of the max/min number each row |
| col_min | Get the column name of the max/min number each row |
| col_rn | Tools for working with row names |
| complete_dt | Complete a data frame with missing combinations of data |
| count_dt | Count observations by group |
| cummean | Cumulative mean |
-- D --
| delete_na_cols | Dump, replace and fill missing values in data.frame |
| delete_na_rows | Dump, replace and fill missing values in data.frame |
| df_mat | Conversion between tidy table and named matrix |
| distinct_dt | Select distinct/unique rows in data.frame |
| drop_na_dt | Dump, replace and fill missing values in data.frame |
| dummy_dt | Fast creation of dummy variables |
-- E --
| export_fst | Read and write fst files |
-- F --
| fill_na_dt | Dump, replace and fill missing values in data.frame |
| filter_dt | Filter entries in data.frame |
| filter_fst | Parse,inspect and extract data.table from fst file |
| fst | Parse,inspect and extract data.table from fst file |
| full_join_dt | Join tables |
-- G --
| get_fst_chunk_size | Read a fst file by chunks |
| group_by_dt | Group by variable(s) and implement operations |
| group_dt | Data manipulation within groups |
| group_exe_dt | Group by variable(s) and implement operations |
-- I --
| import_fst | Read and write fst files |
| import_fst_chunked | Read a fst file by chunks |
| impute_dt | Impute missing values with mean, median or mode |
| inner_join_dt | Join tables |
| intersect_dt | Set operations for data frames |
| in_dt | Short cut to data.table |
-- J --
| join | Join tables |
-- L --
| lag_dt | Fast lead/lag for vectors |
| lead_dt | Fast lead/lag for vectors |
| left_join_dt | Join tables |
| longer_dt | Pivot data from wide to long |
-- M --
| mat_df | Conversion between tidy table and named matrix |
| maxth | Extract the nth value from a vector |
| minth | Extract the nth value from a vector |
| mutate_dt | Mutate columns in data.frame |
| mutate_vars | Conditional update of columns in data.table |
| mutate_when | Conditional update of columns in data.table |
-- N --
| nest_dt | Nest and unnest |
| nth | Extract the nth value from a vector |
-- O --
| object_size | Nice printing of report the Space Allocated for an Object |
-- P --
| pairwise_count_dt | Count pairs of items within a group |
| parse_fst | Parse,inspect and extract data.table from fst file |
| percent | Add percentage to counts in data.frame |
| pkg_load | Load or unload R package(s) |
| pkg_unload | Load or unload R package(s) |
| print_options | Set global printing method for data.table |
| pst | Convenient print of time taken |
| pull_dt | Pull out a single variable |
-- R --
| rec | Recode number or strings |
| rec_char | Recode number or strings |
| rec_num | Recode number or strings |
| relocate_dt | Change column order |
| rename_dt | Rename column in data.frame |
| rename_with_dt | Rename column in data.frame |
| replace_dt | Fast value replacement in data frame |
| replace_na_dt | Dump, replace and fill missing values in data.frame |
| right_join_dt | Join tables |
| rn_col | Tools for working with row names |
| rowwise_dt | Data manipulation within groups |
-- S --
| sample_dt | Sample rows randomly from a table |
| sample_frac_dt | Sample rows randomly from a table |
| sample_n_dt | Sample rows randomly from a table |
| select_dt | Select column from data.frame |
| select_fst | Parse,inspect and extract data.table from fst file |
| select_mix | Select column from data.frame |
| semi_join_dt | Join tables |
| separate_dt | Separate a character column into two columns using a regular expression separator |
| setdiff_dt | Set operations for data frames |
| setequal_dt | Set operations for data frames |
| shift_fill | Dump, replace and fill missing values in data.frame |
| slice_dt | Subset rows using their positions |
| slice_fst | Parse,inspect and extract data.table from fst file |
| slice_head_dt | Subset rows using their positions |
| slice_max_dt | Subset rows using their positions |
| slice_min_dt | Subset rows using their positions |
| slice_sample_dt | Subset rows using their positions |
| slice_tail_dt | Subset rows using their positions |
| sql_join | Case insensitive table joining like SQL |
| sql_join_dt | Case insensitive table joining like SQL |
| squeeze_dt | Nest and unnest |
| summarise_dt | Summarise columns to single values |
| summarise_vars | Summarise columns to single values |
| summarise_when | Summarise columns to single values |
| summarize_dt | Summarise columns to single values |
| summarize_vars | Summarise columns to single values |
| summarize_when | Summarise columns to single values |
| summary_fst | Parse,inspect and extract data.table from fst file |
| sys_time_print | Convenient print of time taken |
-- T --
| transmute_dt | Mutate columns in data.frame |
| t_dt | Efficient transpose of data.frame |
-- U --
| unchop_dt | Nest and unnest |
| uncount_dt | "Uncount" a data frame |
| union_dt | Set operations for data frames |
| unite_dt | Unite multiple columns into one by pasting strings together |
| unnest_dt | Nest and unnest |
| utf8_encoding | Use UTF-8 for character encoding in a data frame |
-- W --
| wider_dt | Pivot data from long to wide |