polars quantile

Aggregates the columns to the selected quantile.

warning This command requires a plugin The polars quantile 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.

Command Type

plugin

Signature

> polars quantile {flags} (quantile)

Parameters

quantile: Quantile value for quantile operation.

Input/output types:

input	output
polars_expression	polars_expression
polars_selector	polars_expression
polars_dataframe	polars_dataframe
polars_lazyframe	polars_lazyframe

Examples

quantile value from columns in a dataframe

> [[a b]; [6 2] [1 4] [4 1]] | polars into-df | polars quantile 0.5
╭───┬──────┬──────╮
│ # │  a   │  b   │
├───┼──────┼──────┤
│ 0 │ 4.00 │ 2.00 │
╰───┴──────┴──────╯

Quantile aggregation for a group-by

> [[a b]; [one 2] [one 4] [two 1]]
                    | polars into-df
                    | polars group-by a
                    | polars agg (polars col b | polars quantile 0.5)
                    | polars collect
                    | polars sort-by a
╭───┬─────┬──────╮
│ # │  a  │  b   │
├───┼─────┼──────┤
│ 0 │ one │ 4.00 │
│ 1 │ two │ 1.00 │
╰───┴─────┴──────╯

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