Khalil Meftah b3d74f80f0 Fix batch wandb logging metrics and handle scalar stats (#3821) ...

* fix(logging): batch wandb metrics

- Batch all metrics into a single wandb.log() call instead of one per
key, reducing API overhead.

- Add support for list-valued metrics by expanding them to indexed keys (e.g.
metric_0, metric_1).

* fix(stats): handle scalar stats robustly

- Wrap cast_stats_to_numpy with np.atleast_1d to prevent 0-d arrays
from scalar stats causing shape mismatches downstream.

* fix(logging): remove unused list-valued metric expansion

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Co-authored-by: Steven Palma <imstevenpmwork@ieee.org>

2026-06-19 18:31:12 +02:00

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lerobot

Fix batch wandb logging metrics and handle scalar stats (#3821)

2026-06-19 18:31:12 +02:00