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Sample by Group about polars HOT 4 OPEN

stevenlis avatar stevenlis commented on July 20, 2024
Sample by Group

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Comments (4)

avimallu avatar avimallu commented on July 20, 2024 1

For now, you can do:

df.with_columns(pl.int_range(0, pl.len()).shuffle().over("group") == 2)

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stevenlis avatar stevenlis commented on July 20, 2024 1

@avimallu I think there's been a misinterpretation. This FR is requesting the selection of n random IDs and all associated rows with those IDs. I'm struggling to understand the purpose of your code. I already provided an expected results example above.

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stevenlis avatar stevenlis commented on July 20, 2024

@avimallu This approach doesn't work because IDs have different rows, and it also doesn't subset the dataset at all.

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avimallu avatar avimallu commented on July 20, 2024

Sorry, you should use filter, not with_columns.

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