![[R logo]](../../../doc/html/Rlogo.svg)
![[Up]](../../../doc/html/left.jpg)
![[Top]](../../../doc/html/up.jpg)
A B C D E F G I L M N P R S T U W misc
| anti_join. | Join two data.tables together |
| any_of. | Select helpers |
| arrange. | Arrange/reorder rows by variables |
| as_dt | Coerce an object to a data.table/tidytable |
| as_tidytable | Coerce an object to a data.table/tidytable |
| bind_cols. | Bind data.tables by row and column |
| bind_rows. | Bind data.tables by row and column |
| case. | Case when |
| complete. | Complete a data.table with missing combinations of data |
| contains. | Select helpers |
| count. | Count observations by group |
| crossing. | Create a data.table from all unique combinations of inputs |
| desc. | Deprecated |
| distinct. | Select distinct/unique rows |
| drop_na. | Drop rows containing missing values |
| dt | Pipeable data.table call |
| dt_anti_join | Join two data.tables together |
| dt_any_of | Select helpers |
| dt_arrange | Arrange/reorder rows by variables |
| dt_bind_cols | Bind data.tables by row and column |
| dt_bind_rows | Bind data.tables by row and column |
| dt_case | Case when |
| dt_contains | Select helpers |
| dt_count | Count observations by group |
| dt_distinct | Select distinct/unique rows |
| dt_drop_na | Drop rows containing missing values |
| dt_ends_with | Select helpers |
| dt_everything | Select helpers |
| dt_fill | Fill in missing values with previous or next value |
| dt_filter | Filter rows on one or more conditions |
| dt_full_join | Join two data.tables together |
| dt_get_dummies | Convert character and factor columns to dummy variables |
| dt_group_nest | Nest data.tables |
| dt_group_split | Split data frame by groups |
| dt_ifelse | Vectorized if |
| dt_inner_join | Join two data.tables together |
| dt_left_join | Join two data.tables together |
| dt_map | Apply a function to each element of a vector |
| dt_map2 | Apply a function to each element of a vector |
| dt_map2_chr | Apply a function to each element of a vector |
| dt_map2_dbl | Apply a function to each element of a vector |
| dt_map2_df | Apply a function to each element of a vector |
| dt_map2_dfc | Apply a function to each element of a vector |
| dt_map2_dfr | Apply a function to each element of a vector |
| dt_map2_int | Apply a function to each element of a vector |
| dt_map2_lgl | Apply a function to each element of a vector |
| dt_map_chr | Apply a function to each element of a vector |
| dt_map_dbl | Apply a function to each element of a vector |
| dt_map_df | Apply a function to each element of a vector |
| dt_map_dfc | Apply a function to each element of a vector |
| dt_map_dfr | Apply a function to each element of a vector |
| dt_map_int | Apply a function to each element of a vector |
| dt_map_lgl | Apply a function to each element of a vector |
| dt_mutate | Mutate |
| dt_mutate_across | Mutate multiple columns simultaneously |
| dt_mutate_all | Deprecated mutate helpers |
| dt_mutate_at | Deprecated mutate helpers |
| dt_mutate_if | Deprecated mutate helpers |
| dt_n | Number of observations in each group |
| dt_pivot_longer | Pivot data from wide to long |
| dt_pivot_wider | Pivot data from long to wide |
| dt_pull | Pull out a single variable |
| dt_relocate | Relocate a column to a new position |
| dt_rename | Rename variables by name |
| dt_rename_across | Deprecated rename helpers |
| dt_rename_all | Deprecated rename helpers |
| dt_rename_at | Deprecated rename helpers |
| dt_rename_if | Deprecated rename helpers |
| dt_rename_with | Rename multiple columns |
| dt_replace_na | Replace missing values |
| dt_right_join | Join two data.tables together |
| dt_row_number | Return row number |
| dt_select | Select or drop columns |
| dt_separate | Separate a character column into multiple columns |
| dt_slice | Choose rows by position |
| dt_slice_head | Choose rows by position |
| dt_slice_max | Choose rows by position |
| dt_slice_min | Choose rows by position |
| dt_slice_tail | Choose rows by position |
| dt_starts_with | Select helpers |
| dt_summarise | Aggregate data using summary statistics |
| dt_summarize | Aggregate data using summary statistics |
| dt_top_n | Select top (or bottom) n rows (by value) |
| dt_transmute | Add new variables and drop all others |
| dt_unite | Unite multiple columns by pasting strings together |
| dt_unnest_legacy | Unnest a nested data.table |
| ends_with. | Select helpers |
| everything. | Select helpers |
| expand. | Expand a data.table to use all combinations of values |
| expand_grid. | Create a data.table from all combinations of inputs |
| fill. | Fill in missing values with previous or next value |
| filter. | Filter rows on one or more conditions |
| full_join. | Join two data.tables together |
| get_dummies. | Convert character and factor columns to dummy variables |
| group_split. | Split data frame by groups |
| ifelse. | Vectorized if |
| inner_join. | Join two data.tables together |
| inv_gc | Run invisible garbage collection |
| is_tidytable | Test if the object is a tidytable |
| lags. | Lead and Lag |
| leads. | Lead and Lag |
| left_join. | Join two data.tables together |
| map. | Apply a function to each element of a vector |
| map2. | Apply a function to each element of a vector |
| map2_chr. | Apply a function to each element of a vector |
| map2_dbl. | Apply a function to each element of a vector |
| map2_df. | Apply a function to each element of a vector |
| map2_dfc. | Apply a function to each element of a vector |
| map2_dfr. | Apply a function to each element of a vector |
| map2_int. | Apply a function to each element of a vector |
| map2_lgl. | Apply a function to each element of a vector |
| map_chr. | Apply a function to each element of a vector |
| map_dbl. | Apply a function to each element of a vector |
| map_df. | Apply a function to each element of a vector |
| map_dfc. | Apply a function to each element of a vector |
| map_dfr. | Apply a function to each element of a vector |
| map_int. | Apply a function to each element of a vector |
| map_lgl. | Apply a function to each element of a vector |
| mutate. | Mutate |
| mutate_across. | Mutate multiple columns simultaneously |
| mutate_all. | Deprecated mutate helpers |
| mutate_at. | Deprecated mutate helpers |
| mutate_if. | Deprecated mutate helpers |
| n. | Number of observations in each group |
| nest_by. | Nest data.tables |
| pivot_longer. | Pivot data from wide to long |
| pivot_wider. | Pivot data from long to wide |
| pull. | Pull out a single variable |
| relocate. | Relocate a column to a new position |
| rename. | Rename variables by name |
| rename_across. | Deprecated rename helpers |
| rename_all. | Deprecated rename helpers |
| rename_at. | Deprecated rename helpers |
| rename_if. | Deprecated rename helpers |
| rename_with. | Rename multiple columns |
| replace_na. | Replace missing values |
| right_join. | Join two data.tables together |
| row_number. | Return row number |
| select. | Select or drop columns |
| separate. | Separate a character column into multiple columns |
| separate_rows. | Separate a collapsed column into multiple rows |
| slice. | Choose rows by position |
| slice_head. | Choose rows by position |
| slice_max. | Choose rows by position |
| slice_min. | Choose rows by position |
| slice_tail. | Choose rows by position |
| starts_with. | Select helpers |
| summarise. | Aggregate data using summary statistics |
| summarise_across. | Summarize multiple columns |
| summarize. | Aggregate data using summary statistics |
| summarize_across. | Summarize multiple columns |
| tidytable | Build a data.table/tidytable |
| top_n. | Select top (or bottom) n rows (by value) |
| transmute. | Add new variables and drop all others |
| uncount. | Uncount a data.table |
| unite. | Unite multiple columns by pasting strings together |
| unnest. | Unnest a nested data.table |
| walk. | Apply a function to each element of a vector |
| where | Select variables with a function |
| %notin% | notin operator |