Is the observation space of CartPole-v0 wrong?

[robert780612]

I got 4.8 from the following code. It means the max cart position is 4.8

import gym
env = gym.make('CartPole-v0')
print(env.observation_space.high[0])

But in the comment from the source code, the max cart position is 2.4.
This is the termination criteria, and it's not the observation upper bound.
Am I right?

Observation: 
    Type: Box(4)
    Num	Observation                 Min         Max
    0	Cart Position             -2.4            2.4
    1	Cart Velocity             -Inf            Inf
    2	Pole Angle                ~-41.8°         ~41.8°
    3	Pole Velocity At Tip      -Inf            Inf

Source code
https://github.com/openai/gym/blob/master/gym/envs/classic_control/cartpole.py#L24

One more thing, the observation space of angle is 24° from line 67 & 74.
https://github.com/openai/gym/blob/master/gym/envs/classic_control/cartpole.py#L67
https://github.com/openai/gym/blob/master/gym/envs/classic_control/cartpole.py#L74

[pzhokhov]

Correct, the episode is considered terminated when absolute value of position is above 2.4 or absolute value of angle is above 12 degrees. I'll update the docs, thanks for pointing that out

[pzhokhov]

fixed