28 июл. 2023 г. · I want to unnest both those columns and get a flat data frame, with the fields suffixed to disambiguate them.

12 авг. 2024 г. · You can avoid unpivot by relying on schema knowledge since Polars is aware of the fields on a struct. This has the added (but not necessary) benefit of readily ...

1 дек. 2022 г. · This method is the most concise and intuitive means to unnest nested structs as it repeatedly unnests the frame and then checks if there are structs until ...

16 авг. 2024 г. · Some of my columns in my Polars Dataframe have the dtype pl.List(pl.Struct). I'm trying to replace these columns so that I get multiple columns that are lists ...

9 нояб. 2023 г. · You can convert the a column to a list of its values by select ing it, unnest ing it, then select ing all inside a concat_list like this:

24 янв. 2023 г. · Polars table convert a list column to separate rows i.e. unnest a list column to multiple rows - Stack Overflow.

7 июн. 2024 г. · DataFrame.unnest is used to unnest struct columns into their fields. Your function map_elements creates a column of type list[str] instead.

6 апр. 2024 г. · I'm working with a deeply nested DataFrame (not good practice, I know), and I'd like to express something like "select field X for all structs in list Y".

13 апр. 2024 г. · I have explored the polars python api docs but cannot figure out how to extract out just the companyName fields into a separate list column.

7 нояб. 2024 г. · I've tried various versions of unnest and explode , but I am failing to turn this into a long pl.DataFrame where the list is turned into ...