README.md

---

    tags: [astronomy, spectroscopy, NOIRLab]
    license: CC-BY-4.0
    language: en
    ---

    # BGRS

    **Quick facts:** full: 1089977 rows  • filtered_train/test combined: 1083363 rows • Vector dim: 7781

    **Description:** This dataset contains scalar metadata (from FITS HDU 1) together with dense per-row vectors extracted from HDF5.

    ## Splits
    - `full` — all rows
    - `train` — 80% of filtered selection (criterion: GALAXY delta_z < 0.0033 or QSO delta_z < 0.01)
    - `test`  — 20% of filtered selection

    ## Usage
    ```python
    from datasets import load_dataset
    ds_full = load_dataset("AndyMorgan-NOIRLab/BGRS", split="full")
    ds_train = load_dataset("AndyMorgan-NOIRLab/BGRS", split="train")
    ds_test = load_dataset("AndyMorgan-NOIRLab/BGRS", split="test")