How do I sample from a Ray Datasets

Ray Libraries (Data, Train, Tune, Serve) Ray Data
1

In pandas there is a sample API, how can I do that in Ray Datasets?

My traceback:

...
  File "starter.py", line 35, in train_xgboost
    X_train = data.sample(frac=1 - test_fraction)
AttributeError: 'Dataset' object has no attribute 'sample'

Thank you!

2

I filed this GitHub issue to add random_sample(): [data] Add dataset.random_sample() API · Issue #24449 · ray-project/ray · GitHub

For now, you can ds.map_batches(lambda batch: batch.sample(...)).take() to implement random sampling “manually”.