Use polars to work with tabular data
#712
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lars-reimann
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…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 <[email protected]> Co-authored-by: Alexander <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
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## [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))
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Is your feature request related to a problem?
Some operations are very slow with
pandas. Their transition toPyArrowis also going to take long.Desired solution
Use
polarsinstead, maybe even its lazy mode.Possible alternatives (optional)
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