THULab/record_test_3

record-test_3 TsFile

This dataset is a TsFile conversion of the LeRobot dataset sunparticle/record-test_3. The source dataset was created with LeRobot and is licensed under apache-2.0.

Dataset Details

• Source dataset: sunparticle/record-test_3
• Source format: LeRobot v2.1
• Robot type: so101_follower
• Modalities: Time-series robot state and action data
• Source task: place crown on capybara
• Split: train
• Episodes: 40
• Frames / rows: 17403
• Tasks: 1
• Sampling rate: 30 fps
• Source videos: 40
• Converted data file: data/record_test_3_train.tsfile

TsFile Layout

The conversion writes one TsFile table for the train split: record_test_3_train.

• Time is the TsFile time column in milliseconds.
• episode_index and task_index are TAG columns.
• frame_index and sample_index are scalar FIELD columns.
• action_0 through action_5 are flattened action FIELD columns.
• observation_state_0 through observation_state_5 are flattened observation FIELD columns.

Vector column flattening preserves the source column name, replaces . with _, and appends the element index. For example, observation.state becomes observation_state_0 through observation_state_5.

Conversion Notes

• Time = round(timestamp * 1000) and restarts per episode.
• The source timestamp column is dropped because it is represented by Time / 1000 seconds.
• The source index column is renamed to sample_index.
• No numeric time-series rows are dropped; the converted TsFile has 17403 rows.
• Source meta/ files are mirrored, with meta/info.json updated to describe the converted TsFile artifact.
• Videos are not uploaded here. The source video feature observation.images.front and the videos/ tree remain in the original dataset: https://huggingface.co/datasets/sunparticle/record-test_3/tree/main/videos.

Read Example

Use the Apache TsFile SDK or TsFile tools to read:

data/record_test_3_train.tsfile

For episode-level filtering, query the table with the TAG column, for example WHERE episode_index = 0.