How should I get the expert data?

[nishizawa7276]

I think I can't start learning because there is no expert data.
However, I do not know how to create expert data.
Please teach me how to create expert data.

[zbzhu99]

The path to putting the expert data and the format of expert data are mentioned in README:

Expert trajectories
Please update the path to expert trajectories in the file "code/conf/envParams.yaml". Also see the storage requirements in "code/expert_envs.py" and modify as per convenience.

I think you can write some rule policy or train an expert policy with forward RL algos and use these policies to roll out in the envs and store the observations and actions with pickle. Maybe you can refer to expert data generation part in stable-baselines GAIL.