polars.Expr.list.gather# ... Take sublists by multiple indices. The indices may be defined in a single column, or by sublists in another column of dtype List .

polars.Series.list.gather# ... Take sublists by multiple indices. The indices may be defined in a single column, or by sublists in another column of dtype List .

Take every n-th value start from offset in sublists. Parameters: n. Gather every n-th element. offset. Starting index.

Take every n-th value start from offset in sublists. Parameters: n. Gather every n-th element. offset. Starting index.

24 янв. 2024 г. · I have a dataset that has two columns: a list of [R, G, B] values for an image and that same list once I run it through the K-means algorithm.

An expression that leads to a UInt32 dtyped Series. Returns: Expr. Expression of the same data type. See also.

8 мая 2024 г. · I am trying to group_by and look for groups that have different ids for the same data using polars. The error I am getting is: Error: 'Expr' object has no ...

Expr.list.first (). Get the first value of the sublists. ; Expr.list.gather (indices, *[, null_on_oob]). Take sublists by multiple indices. ; Expr.list.

Python API reference · Series · Manipulation/selection; polars.Series.gather. polars.Series.gather#. Series.gather(indices: int | list[int] | Expr | Series ...

Dataframes powered by a multithreaded, vectorized query engine, written in Rust - polars/py-polars/polars/expr/list.py at main · pola-rs/polars.