README.md

metadata

license: apache-2.0
tags:
  - TsFile
  - time-series
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/aloha_static_battery.tsfile

aloha_static_battery

Converted from the Hugging Face dataset lerobot/aloha_static_battery to Apache TsFile format.

Source Dataset

• Original dataset: lerobot/aloha_static_battery
• Authors: LeRobot (Hugging Face)
• License: apache-2.0

Conversion notes:

• LeRobot v3.0 robot dataset: 49 episodes, 29,400 frames, 50 fps, 1 task.
• All episodes are stored in a single TsFile under data/aloha_static_battery.tsfile with source columns episode_index and task_index as TAG columns; query one episode with WHERE episode_index=N.
• Vector columns are flattened to single-precision FLOAT, preserving the source column name: . is replaced with _ and the element index is appended.
• Time is synthesized as round(timestamp * 1000) milliseconds, restarting per episode. Dropped column: source timestamp (seconds), because it equals Time / 1000. frame_index is kept and index is renamed to sample_index.
• Source camera videos are not included in this repository. They remain in the original dataset under videos/.
• meta/ is mirrored from the source. meta/info.json describes the converted TsFile schema.

Conversion Notes

• Conversion mode: script
• Time precision: ms
• TsFile data files: ['data/aloha_static_battery.tsfile']
• Converter: scripts/converters/lerobot.py

Usage

# Read the .tsfile files with the Apache TsFile Java/Python SDK.