sksurv.datasets.load_breast_cancer

sksurv.datasets.load_breast_cancer(*, output_type='pandas')

Load and return the breast cancer dataset

The dataset has 198 samples and 80 features. The endpoint is the presence of distance metastases, which occurred for 51 patients (25.8%).

See [1], [2] for further description.

Parameters:

output_type ({"pandas", "polars"}, default="pandas") – Dataframe library used for the returned features.

Returns:

• x (pandas.DataFrame or polars.DataFrame) – The measurements for each patient.

• y (structured array with 2 fields) – e.tdm: boolean indicating whether the endpoint has been reached or the event time is right-censored.

  t.tdm: time to distant metastasis (days)

References

[1]

https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE7390

[2]

Desmedt, C., Piette, F., Loi et al.: “Strong Time Dependence of the 76-Gene Prognostic Signature for Node-Negative Breast Cancer Patients in the TRANSBIG Multicenter Independent Validation Series.” Clin. Cancer Res. 13(11), 3207–14 (2007)