polars math bitwise-leading-ones
For dataframe.
Compute the number of leading set bits for each element in an integer column expression.
warning This command requires a plugin The
polars math bitwise-leading-onescommand resides in thepolarsplugin. To use this command, you must install and registernu_plugin_polars. See the Plugins chapter in the book for more information.
Command Type
plugin
Signature
> polars math bitwise-leading-ones {flags}
Input/output types:
| input | output |
|---|---|
| polars_expression | polars_expression |
| polars_selector | polars_expression |
Examples
Count the number of leading set bits for each element in an integer column
> [[n]; [0] [-1] [127]] |
polars into-df |
polars select (polars col n | polars math bitwise-leading-ones) |
polars collect
╭───┬────╮
│ # │ n │
├───┼────┤
│ 0 │ 0 │
│ 1 │ 64 │
│ 2 │ 0 │
╰───┴────╯
Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.