anneal

This dataset was curated for [TabArena](https://tabarena.ai/) by the TabArena team
as part of the [TabArena Tabular ML IID Study](https://tabarena.ai/data-tabular-ml-iid-study).
For more details on the study, see our [paper](https://tabarena.ai/paper-tabular-ml-iid-study).

**Dataset Focus**: This dataset shall be used for evaluating predictive machine
learning models for independent and identically distributed tabular data. The
intended task is classification.

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#### Dataset Metadata
- **Licence:** CC BY 4.0
- **Original Data Source:** https://doi.org/10.24432/C5RW2F
- **Reference (please cite)**: 'Annealing.' UCI Machine Learning Repository, https://doi.org/10.24432/C5RW2F.
- **Dataset Year:** 1990
- **Dataset Description:** see the reference and the original data source for details.

#### Curation comments by the TabArena team (for code see the [page of the study](https://tabarena.ai/data-tabular-ml-iid-study)):
- We combined train and test data into a single dataset.
- We replaced '?' with 'not_applicable' as described in the metadata.
- We renamed some features to remove '/' characters.
- Anomaly: In the original data, class 4 is in the metadata, but there are no samples in this class.