MO-Halfcheetah

Action Space	Box(-1.0, 1.0, (6,), float32)
Observation Shape	(17,)
Observation High	inf
Observation Low	-inf
Reward Shape	(2,)
Reward High	[inf inf]
Reward Low	[-inf -inf]
Import	mo_gymnasium.make("mo-halfcheetah-v4")

Description

Multi-objective version of the HalfCheetahEnv environment.

See Gymnasium’s env for more information.

The original Gymnasium’s ‘HalfCheetah-v4’ is recovered by the following linear scalarization:

env = mo_gym.make(‘mo-halfcheetah-v4’) LinearReward(env, weight=np.array([1.0, 1.0]))

Reward Space

The reward is 2-dimensional:

• 0: Reward for running forward

• 1: Control cost of the action