polars sample for dataframe

Signature

> polars sample {flags}

Flags

• --n-rows, -n {int}: Number of rows to be taken from dataframe.
• --fraction, -f {number}: Fraction of dataframe to be taken.
• --seed, -s {number}: Seed for the selection.
• --replace, -e: Sample with replace.
• --shuffle, -u: Shuffle sample.

Input/output types:

Examples

Sample rows from dataframe

> [[a b]; [1 2] [3 4]] | polars into-df | polars sample --n-rows 1

Shows sample row using fraction and replace

> [[a b]; [1 2] [3 4] [5 6]] | polars into-df | polars sample --fraction 0.5 --replace

Shows sample row using using predefined seed 1

> [[a b]; [1 2] [3 4] [5 6]] | polars into-df | polars sample --seed 1 --n-rows 1
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 5 │ 6 │
╰───┴───┴───╯