Annotation mistake in examples

[hnl1]

1_load_lerobot_dataset.py L132

    print(f"{batch['observation.state'].shape=}")  # (32, 5, c)

I started learning LeRobot today. I noticed that the "5" in the comment here should be "6" because there are 6 timestamps in the observation.state of delta_timestamps earlier.

I'm not sure if this counts as an bug and whether it's worth creating a pull request (PR). However, as a beginner like me, it took me a while to confirm that it was a problem with the comments rather than an issue with my program's output.

[hnl1]

I found another problem at https://github.com/huggingface/lerobot/blob/638d411cd3acf32c28d8c2120f3c41bda8bb15d4/examples/2_evaluate_pretrained_policy.py#L7C1-L7C27

There is an extra backtick (`) at the end, which causes the command execution to fail.

[tc-huang]

Hello @hnl1,

I noticed that the issue in examples/1_load_lerobot_dataset.py at line 132, which you mentioned, appears to have already been reported in another open pull request (#631).

[hnl1]

@tc-huang You're right. I just checked PR #631 , and the changes indeed solved the problem of 1_load_lerobot_dataset.py L132

[hnl1]

I found another problem at

lerobot/examples/2_evaluate_pretrained_policy.py

Line 73 in 638d411

# Convert to float32 with image from channel first in [0,255]

The original image already has the channels at the end. The operation here is to move the channels to the front. The annotation is incorrect.

[hnl1]

I will submit a PR to fix the other issues I've found, and then close this issue.