sinergym.utils.wrappers.PreviousObservationWrapper

class sinergym.utils.wrappers.PreviousObservationWrapper(env: Env, previous_variables: List[str])

Wrapper to add observation values from previous timestep to current environment observation

__init__(env: Env, previous_variables: List[str])

Constructor for the observation wrapper.

Methods

__init__(env, previous_variables)

Constructor for the observation wrapper.

class_name()

Returns the class name of the wrapper.

close()

Closes the wrapper and env.

get_wrapper_attr(name)

Gets an attribute from the wrapper and lower environments if name doesn't exist in this object.

observation(obs)

Add previous observation to the current one

render()

Uses the render() of the env that can be overwritten to change the returned data.

reset(*[, seed, options])

Modifies the env after calling reset(), returning a modified observation using self.observation().

step(action)

Modifies the env after calling step() using self.observation() on the returned observations.

wrapper_spec(**kwargs)

Generates a WrapperSpec for the wrappers.

Attributes

action_space

Return the Env action_space unless overwritten then the wrapper action_space is used.

logger

metadata

Returns the Env metadata.

np_random

Returns the Env np_random attribute.

observation_space

Return the Env observation_space unless overwritten then the wrapper observation_space is used.

render_mode

Returns the Env render_mode.

reward_range

Return the Env reward_range unless overwritten then the wrapper reward_range is used.

spec

Returns the Env spec attribute with the WrapperSpec if the wrapper inherits from EzPickle.

unwrapped

Returns the base environment of the wrapper.

logger = <Logger WRAPPER PreviousObservationWrapper (INFO)>
observation(obs: ndarray) ndarray

Add previous observation to the current one

Parameters:

obs (np.ndarray) – Original observation.

Returns:

observation with

Return type:

np.ndarray