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Use polars to work with tabular data #712

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lars-reimann opened this issue May 4, 2024 · 1 comment · Fixed by #744
Closed

Use polars to work with tabular data #712

lars-reimann opened this issue May 4, 2024 · 1 comment · Fixed by #744
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enhancement 💡 New feature or request performance 🏃 Speed things up released Included in a release

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@lars-reimann
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lars-reimann commented May 4, 2024

Is your feature request related to a problem?

Some operations are very slow with pandas. Their transition to PyArrow is also going to take long.

Desired solution

Use polars instead, maybe even its lazy mode.

Possible alternatives (optional)

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@lars-reimann lars-reimann added enhancement 💡 New feature or request performance 🏃 Speed things up labels May 4, 2024
lars-reimann added a commit that referenced this issue May 6, 2024
…polars (#731)

Closes partially #712

### Summary of Changes

Add (mostly empty) classes for a new implementation of the tabular
containers with `polars`.

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
Co-authored-by: Alexander <47296670+Marsmaennchen221@users.noreply.github.com>
lars-reimann added a commit that referenced this issue May 6, 2024
Closes partially #712

### Summary of Changes

Add an implementation of a row based on a polars-backed **Table**. This
allows us to keep using callbacks for filters etc., and still have
vectorized operations.

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
lars-reimann added a commit that referenced this issue May 6, 2024
Closes partially #712

### Summary of Changes

Add a basic implementation of a cell backed by a **Column**. This allows
vectorized computations. For now, only some operators are overwritten.

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
@lars-reimann lars-reimann self-assigned this May 7, 2024
lars-reimann added a commit that referenced this issue May 7, 2024
Closes partially #712

### Summary of Changes

* Implement a column backed by a `polars` series.
* Implement several methods in the `ExperimentalTable` class. Benchmarks
are looking promising.
* Add a new implementation of a cell backed by a `polars` expression.
* Schema and data type backed by corresponding `polars` concepts.

---------

Co-authored-by: megalinter-bot <129584137+megalinter-bot@users.noreply.github.com>
lars-reimann pushed a commit that referenced this issue May 9, 2024
## [0.24.0](v0.23.0...v0.24.0) (2024-05-09)

### Features

* `Column.plot_histogram()` using `Table.plot_histograms` for consistent results ([#726](#726)) ([576492c](576492c))
* `Regressor.summarize_metrics` and `Classifier.summarize_metrics` ([#729](#729)) ([1cc14b1](1cc14b1)), closes [#713](#713)
* `Table.keep_only_rows` ([#721](#721)) ([923a6c2](923a6c2))
* `Table.remove_rows` ([#720](#720)) ([a1cdaef](a1cdaef)), closes [#698](#698)
* Add `ImageDataset` and Layer for ConvolutionalNeuralNetworks ([#645](#645)) ([5b6d219](5b6d219)), closes [#579](#579) [#580](#580) [#581](#581)
* added load_percentage parameter to ImageList.from_files to load a subset of the given files ([#739](#739)) ([0564b52](0564b52)), closes [#736](#736)
* added rnn layer and TimeSeries conversion ([#615](#615)) ([6cad203](6cad203)), closes [#614](#614) [#648](#648) [#656](#656) [#601](#601)
* Basic implementation of cell with polars ([#734](#734)) ([004630b](004630b)), closes [#712](#712)
* deprecate `Table.add_column` and `Table.add_row` ([#723](#723)) ([5dd9d02](5dd9d02)), closes [#722](#722)
* deprecated `Table.from_excel_file` and `Table.to_excel_file` ([#728](#728)) ([c89e0bf](c89e0bf)), closes [#727](#727)
* Larger histogram plot if table only has one column ([#716](#716)) ([31ffd12](31ffd12))
* polars implementation of a column ([#738](#738)) ([732aa48](732aa48)), closes [#712](#712)
* polars implementation of a row ([#733](#733)) ([ff627f6](ff627f6)), closes [#712](#712)
* polars implementation of table ([#744](#744)) ([fc49895](fc49895)), closes [#638](#638) [#641](#641) [#649](#649) [#712](#712)
* regularization for decision trees and random forests ([#730](#730)) ([102de2d](102de2d)), closes [#700](#700)
* Remove device information in image class ([#735](#735)) ([d783caa](d783caa)), closes [#524](#524)
* return fitted transformer and transformed table from `fit_and_transform` ([#724](#724)) ([2960d35](2960d35)), closes [#613](#613)

### Bug Fixes

* make `Image.clone` internal ([#725](#725)) ([215a472](215a472)), closes [#626](#626)

### Performance Improvements

* improved performance of `TabularDataset.__eq__` by a factor of up to 2 ([#697](#697)) ([cd7f55b](cd7f55b))
@lars-reimann
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🎉 This issue has been resolved in version 0.24.0 🎉

The release is available on:

Your semantic-release bot 📦🚀

@lars-reimann lars-reimann added the released Included in a release label May 9, 2024
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