dfr first for dataframe

Signature

> dfr first {flags} (rows)

Parameters

• rows: starting from the front, the number of rows to return

Input/output types:

Examples

Return the first row of a dataframe

> [[ab]; [12] [34]] |dfr into-df|dfr first
╭───┬───┬───╮
│# │ a │ b │
├───┼───┼───┤
│0│1│2│
╰───┴───┴───╯

Return the first two rows of a dataframe

> [[ab]; [12] [34]] |dfr into-df|dfr first2
╭───┬───┬───╮
│# │ a │ b │
├───┼───┼───┤
│0│1│2│
│1│3│4│
╰───┴───┴───╯

Creates a first expression from a column

>dfr cola|dfr first

Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag