polars explode
for lazyframe
Explodes a dataframe or creates a explode expression.
This command requires a plugin
The polars explode
command resides in the polars
plugin. To use this command, you must install and register nu_plugin_polars
. See the Plugins chapter in the book for more information.
Signature
> polars explode {flags} ...rest
Parameters
...rest
: columns to explode, only applicable for dataframes
Input/output types:
input | output |
---|---|
any | any |
Examples
Explode the specified dataframe
> [[id name hobbies]; [1 Mercy [Cycling Knitting]] [2 Bob [Skiing Football]]] | polars into-df | polars explode hobbies | polars collect
╭───┬────┬───────┬──────────╮
│ # │ id │ name │ hobbies │
├───┼────┼───────┼──────────┤
│ 0 │ 1 │ Mercy │ Cycling │
│ 1 │ 1 │ Mercy │ Knitting │
│ 2 │ 2 │ Bob │ Skiing │
│ 3 │ 2 │ Bob │ Football │
╰───┴────┴───────┴──────────╯
Select a column and explode the values
> [[id name hobbies]; [1 Mercy [Cycling Knitting]] [2 Bob [Skiing Football]]] | polars into-df | polars select (polars col hobbies | polars explode)
╭───┬──────────╮
│ # │ hobbies │
├───┼──────────┤
│ 0 │ Cycling │
│ 1 │ Knitting │
│ 2 │ Skiing │
│ 3 │ Football │
╰───┴──────────╯