d4rl_mujoco_halfcheetah

• Description:

D4RL is an open-source benchmark for offline reinforcement learning. It provides standardized environments and datasets for training and benchmarking algorithms.

The datasets follow the RLDS format to represent steps and episodes.

• Config description: See more details about the task and its versions in https://github.com/rail-berkeley/d4rl/wiki/Tasks#gym

• Homepage: https://sites.google.com/view/d4rl-anonymous

• Source code: tfds.d4rl.d4rl_mujoco_halfcheetah.D4rlMujocoHalfcheetah

• Versions:

  • 1.0.0: Initial release.
  • 1.0.1: Support for episode and step metadata, and unification of the reward shape across all the configs.
  • 1.1.0: Added is_last.
  • 1.2.0 (default): Updated to take into account the next observation.

• Supervised keys (See as_supervised doc): None

• Figure (tfds.show_examples): Not supported.

• Citation:

@misc{fu2020d4rl,
    title={D4RL: Datasets for Deep Data-Driven Reinforcement Learning},
    author={Justin Fu and Aviral Kumar and Ofir Nachum and George Tucker and Sergey Levine},
    year={2020},
    eprint={2004.07219},
    archivePrefix={arXiv},
    primaryClass={cs.LG}
}

d4rl_mujoco_halfcheetah/v0-expert (default config)

• Download size: 83.44 MiB

• Dataset size: 98.43 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	1,002

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v0-medium

• Download size: 82.92 MiB

• Dataset size: 98.43 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	1,002

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v0-medium-expert

• Download size: 166.36 MiB

• Dataset size: 196.86 MiB

• Auto-cached (documentation): Only when shuffle_files=False (train)

• Splits:

Split	Examples
'train'	2,004

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v0-mixed

• Download size: 8.60 MiB

• Dataset size: 9.94 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	101

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v0-random

• Download size: 84.79 MiB

• Dataset size: 98.43 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	1,002

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-expert

• Download size: 146.94 MiB

• Dataset size: 451.88 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'policy': FeaturesDict({
        'fc0': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 17), dtype=float32),
        }),
        'fc1': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 256), dtype=float32),
        }),
        'last_fc': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'last_fc_log_std': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'nonlinearity': string,
        'output_distribution': string,
    }),
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float32,
            'qpos': Tensor(shape=(9,), dtype=float32),
            'qvel': Tensor(shape=(9,), dtype=float32),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
policy	FeaturesDict
policy/fc0	FeaturesDict
policy/fc0/bias	Tensor	(256,)	float32
policy/fc0/weight	Tensor	(256, 17)	float32
policy/fc1	FeaturesDict
policy/fc1/bias	Tensor	(256,)	float32
policy/fc1/weight	Tensor	(256, 256)	float32
policy/last_fc	FeaturesDict
policy/last_fc/bias	Tensor	(6,)	float32
policy/last_fc/weight	Tensor	(6, 256)	float32
policy/last_fc_log_std	FeaturesDict
policy/last_fc_log_std/bias	Tensor	(6,)	float32
policy/last_fc_log_std/weight	Tensor	(6, 256)	float32
policy/nonlinearity	Tensor		string
policy/output_distribution	Tensor		string
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float32
steps/infos/qpos	Tensor	(9,)	float32
steps/infos/qvel	Tensor	(9,)	float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-medium

• Download size: 146.65 MiB

• Dataset size: 451.88 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'policy': FeaturesDict({
        'fc0': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 17), dtype=float32),
        }),
        'fc1': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 256), dtype=float32),
        }),
        'last_fc': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'last_fc_log_std': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'nonlinearity': string,
        'output_distribution': string,
    }),
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float32,
            'qpos': Tensor(shape=(9,), dtype=float32),
            'qvel': Tensor(shape=(9,), dtype=float32),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
policy	FeaturesDict
policy/fc0	FeaturesDict
policy/fc0/bias	Tensor	(256,)	float32
policy/fc0/weight	Tensor	(256, 17)	float32
policy/fc1	FeaturesDict
policy/fc1/bias	Tensor	(256,)	float32
policy/fc1/weight	Tensor	(256, 256)	float32
policy/last_fc	FeaturesDict
policy/last_fc/bias	Tensor	(6,)	float32
policy/last_fc/weight	Tensor	(6, 256)	float32
policy/last_fc_log_std	FeaturesDict
policy/last_fc_log_std/bias	Tensor	(6,)	float32
policy/last_fc_log_std/weight	Tensor	(6, 256)	float32
policy/nonlinearity	Tensor		string
policy/output_distribution	Tensor		string
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float32
steps/infos/qpos	Tensor	(9,)	float32
steps/infos/qvel	Tensor	(9,)	float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-medium-expert

• Download size: 293.00 MiB

• Dataset size: 342.37 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	2,000

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float32,
            'qpos': Tensor(shape=(9,), dtype=float32),
            'qvel': Tensor(shape=(9,), dtype=float32),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float32
steps/infos/qpos	Tensor	(9,)	float32
steps/infos/qvel	Tensor	(9,)	float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-medium-replay

• Download size: 57.68 MiB

• Dataset size: 34.59 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	202

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float64),
        'discount': float64,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float64),
        'reward': float64,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
steps	Dataset
steps/action	Tensor	(6,)	float64
steps/discount	Tensor		float64
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float64
steps/reward	Tensor		float64

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-full-replay

• Download size: 285.01 MiB

• Dataset size: 171.22 MiB

• Auto-cached (documentation): Only when shuffle_files=False (train)

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float64),
        'discount': float64,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float64),
        'reward': float64,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
steps	Dataset
steps/action	Tensor	(6,)	float64
steps/discount	Tensor		float64
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float64
steps/reward	Tensor		float64

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v1-random

• Download size: 145.19 MiB

• Dataset size: 171.18 MiB

• Auto-cached (documentation): Only when shuffle_files=False (train)

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float32,
            'qpos': Tensor(shape=(9,), dtype=float32),
            'qvel': Tensor(shape=(9,), dtype=float32),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float32
steps/infos/qpos	Tensor	(9,)	float32
steps/infos/qvel	Tensor	(9,)	float32
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-expert

• Download size: 226.46 MiB

• Dataset size: 451.88 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'policy': FeaturesDict({
        'fc0': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 17), dtype=float32),
        }),
        'fc1': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 256), dtype=float32),
        }),
        'last_fc': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'last_fc_log_std': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'nonlinearity': string,
        'output_distribution': string,
    }),
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
policy	FeaturesDict
policy/fc0	FeaturesDict
policy/fc0/bias	Tensor	(256,)	float32
policy/fc0/weight	Tensor	(256, 17)	float32
policy/fc1	FeaturesDict
policy/fc1/bias	Tensor	(256,)	float32
policy/fc1/weight	Tensor	(256, 256)	float32
policy/last_fc	FeaturesDict
policy/last_fc/bias	Tensor	(6,)	float32
policy/last_fc/weight	Tensor	(6, 256)	float32
policy/last_fc_log_std	FeaturesDict
policy/last_fc_log_std/bias	Tensor	(6,)	float32
policy/last_fc_log_std/weight	Tensor	(6, 256)	float32
policy/nonlinearity	Tensor		string
policy/output_distribution	Tensor		string
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-full-replay

• Download size: 277.88 MiB

• Dataset size: 171.22 MiB

• Auto-cached (documentation): Only when shuffle_files=False (train)

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-medium

• Download size: 226.71 MiB

• Dataset size: 451.88 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'policy': FeaturesDict({
        'fc0': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 17), dtype=float32),
        }),
        'fc1': FeaturesDict({
            'bias': Tensor(shape=(256,), dtype=float32),
            'weight': Tensor(shape=(256, 256), dtype=float32),
        }),
        'last_fc': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'last_fc_log_std': FeaturesDict({
            'bias': Tensor(shape=(6,), dtype=float32),
            'weight': Tensor(shape=(6, 256), dtype=float32),
        }),
        'nonlinearity': string,
        'output_distribution': string,
    }),
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
policy	FeaturesDict
policy/fc0	FeaturesDict
policy/fc0/bias	Tensor	(256,)	float32
policy/fc0/weight	Tensor	(256, 17)	float32
policy/fc1	FeaturesDict
policy/fc1/bias	Tensor	(256,)	float32
policy/fc1/weight	Tensor	(256, 256)	float32
policy/last_fc	FeaturesDict
policy/last_fc/bias	Tensor	(6,)	float32
policy/last_fc/weight	Tensor	(6, 256)	float32
policy/last_fc_log_std	FeaturesDict
policy/last_fc_log_std/bias	Tensor	(6,)	float32
policy/last_fc_log_std/weight	Tensor	(6, 256)	float32
policy/nonlinearity	Tensor		string
policy/output_distribution	Tensor		string
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-medium-expert

• Download size: 452.58 MiB

• Dataset size: 342.37 MiB

• Auto-cached (documentation): No

• Splits:

Split	Examples
'train'	2,000

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-medium-replay

• Download size: 56.69 MiB

• Dataset size: 34.59 MiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	202

• Feature structure:

FeaturesDict({
    'algorithm': string,
    'iteration': int32,
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
algorithm	Tensor		string
iteration	Tensor		int32
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):

d4rl_mujoco_halfcheetah/v2-random

• Download size: 226.34 MiB

• Dataset size: 171.18 MiB

• Auto-cached (documentation): Only when shuffle_files=False (train)

• Splits:

Split	Examples
'train'	1,000

• Feature structure:

FeaturesDict({
    'steps': Dataset({
        'action': Tensor(shape=(6,), dtype=float32),
        'discount': float32,
        'infos': FeaturesDict({
            'action_log_probs': float64,
            'qpos': Tensor(shape=(9,), dtype=float64),
            'qvel': Tensor(shape=(9,), dtype=float64),
        }),
        'is_first': bool,
        'is_last': bool,
        'is_terminal': bool,
        'observation': Tensor(shape=(17,), dtype=float32),
        'reward': float32,
    }),
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
steps	Dataset
steps/action	Tensor	(6,)	float32
steps/discount	Tensor		float32
steps/infos	FeaturesDict
steps/infos/action_log_probs	Tensor		float64
steps/infos/qpos	Tensor	(9,)	float64
steps/infos/qvel	Tensor	(9,)	float64
steps/is_first	Tensor		bool
steps/is_last	Tensor		bool
steps/is_terminal	Tensor		bool
steps/observation	Tensor	(17,)	float32
steps/reward	Tensor		float32

• Examples (tfds.as_dataframe):