tidyr

Reference map of r-tidyverse-tidyr can be found here.

Legend:

Sample	Status
normal	API that is regularly ported
~~strike-through~~	API that is not ported, or not an API originally
bold	API that is unique in `datar`
italic	Working in process

API	Description	Notebook example
pivot_longer()	Pivot data from wide to long
pivot_wider()	Pivot data from long to wide

API	Description	Notebook example
`hoist()` `unnest_longer()` `unnest_wider()` `unnest_auto()`	Rectangle a nested list into a tidy tibble

API	Description	Notebook example
`nest()` `unnest()`	Nest and unnest

API	Description	Notebook example
`extract()`	Extract a character column into multiple columns using regular expression groups
`separate()`	Separate a character column into multiple columns with a regular expression or numeric locations
`separate_rows()`	Separate a collapsed column into multiple rows
`unite()`	Unite multiple columns into one by pasting strings together

API	Description	Notebook example
`complete()`	Complete a data frame with missing combinations of data
`drop_na()`	Drop rows containing missing values
`expand()` `crossing()` `nesting()`	Expand data frame to include all possible combinations of values
`expand_grid()`
`fill()`	Fill in missing values with previous or next value
`full_seq()`	Create the full sequence of values in a vector
`replace_na()`	Replace NAs with specified values