license:odbl size_categories:10M<n<100M format:parquet modality:text library:datasets library:dask library:mlcroissant library:polars region:us
---
license: odbl
---

**WARNING ⚠️: Accessing datahub data via hugging face is still under construction (use https://github.com/cbioPortal/datahub instead).**

# cBioPortal Datahub

These are parquet files generated from https://github.com/cBioPortal/datahub. It combines all studies' sample, patient, and mutation data into parquet files. They were generated using [cbiohubpy](https://github.com/cBioPortal/cbiohubpy).

## How to use

Query all mutations of datahub directly in `duckdb`:

```
SELECT count(distinct (Chromosome, Start_Position, End_Position, Reference_Allele, Tumor_Seq_Allele1, Tumor_Seq_Allele2))
FROM read_parquet('hf://datasets/cBioPortal/datahub/data/combined_mutations.parquet')
```