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The `top_k` expression can be used as a reduction on primitive types, but is often used alongside group_by and will return a nested type.
```python
import polars as pl
from functools import parti…
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**Describe the bug**
A clear and concise description of what the bug is.
- [x] I have checked that this issue has not already been reported.
- [x] I have confirmed this bug exists on the latest v…
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### Description
Our codebase primarily relies on pandas for data handling and manipulation tasks. However, we have identified potential performance improvements that could be gained by incorporating …
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Looks like `polars` made a breaking change at some point and renamed it to `.corr` (https://docs.pola.rs/api/python/stable/reference/expressions/api/polars.corr.html#polars.corr)
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Hey - fancy adding a little example on the readme of how your plugin can be used? Just something like
```
import polars as pl
import polars_trading
df = ...
print(df.with_columns(polars_trading…
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
### Reprodu…
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I am not sure if this stems from the difference between extendr and savvy, so apologies if this is completely unrelated.
When comparing the already existing polars binding using extendr (`polars`) …
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### Describe the bug
I'm trying to save a large amount of data to a CSV file using streaming (without storing in memory), but can't do to.
I've tried to find any way to save csv file using streami…
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Related to #599, #570, #715
- The conversion to lit currently being processed on the Rust side is defined by a generic function in R. (c.f. https://github.com/pola-rs/polars/blob/740e740d9ce3678ea0…
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### Description:
Using `sam build` (without `--use-container`) and trying to install a recent version of Polars, such as 1.12.0, fails with "Could not find a version that satisfies the requirement ..…