Add TsFile (converted from lerobot/aloha_sim_transfer_cube_human)

README.md

@@ -15,10 +15,10 @@ Conversion notes:
 - All episodes are stored in a single TsFile with `episode_index` and `task_index`
   as TAG columns (the TsFile device dimension); query a single episode with
   `WHERE episode_index=0`.
-- `observation.state[14]` is flattened to `state_0..state_13`; `action[14]`
+- `observation.state[14]` is flattened to `observation_state_0..observation_state_13`; `action[14]`
   is flattened to `action_0..action_13`.
-- Time is synthesized as `round(frame_index * 1000 / 50)` milliseconds, with the
-  source `timestamp` retained as `episode_timestamp_s`.
+- Time is synthesized as `round(timestamp * 1000)` milliseconds. The source
+  `timestamp` column is dropped after Time synthesis; `frame_index` is kept.
 - Camera video streams are NOT included in this repository; see the original
   dataset videos at
   https://huggingface.co/datasets/lerobot/aloha_sim_transfer_cube_human/tree/main/videos.

aloha_sim_transfer_cube_human.tsfile

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:cc491d45962d73f7e734f0e329061c24539bfa90e59964c75113bf251005c4a7
-size 1661641
+oid sha256:faec45df805b12211dee6dca1c39b5dc5f64c16e7f4f90eef8431274ee2c39dd
+size 1609286

meta/info.json

@@ -140,7 +140,7 @@
     "granularity": "merged",
     "time_precision": "ms",
     "time_mapping": {
-      "source": "frame_index",
+      "source": "timestamp",
       "fps": 50,
       "unit": "milliseconds"
     },