how to judge is 'jack' or not

[shuibaiii]

Sorrrry, I am confused about how to judge is 'jack' or not based on my observation? How can I get the rule?

Really Thank You！

[boris-il-forte]

If you are referring to the "Jerk" metric, you can find the definition in the documentation:
https://air-hockey-challenges-docs.readthedocs.io/en/latest/evaluation.html#metric

However, you cannot compute the Jerk from the data you have access to as it depends on the low-level behavior of the controller, which runs at a higher frequency than the RL agent. Therefore, you would need to learn the correlation between state, action, and resulting jerk.

In general, a smoother trajectory with small acceleration changes will result in less jerk.