[Feature] Remove the Nd*TensorSpec classes

docs/source/reference/data.rst

@@ -74,8 +74,8 @@ as shape, device, dtype and domain.
     BoundedTensorSpec
     OneHotDiscreteTensorSpec
     UnboundedContinuousTensorSpec
-    NdBoundedTensorSpec
-    NdUnboundedContinuousTensorSpec
+    BoundedTensorSpec
+    UnboundedContinuousTensorSpec
     BinaryDiscreteTensorSpec
     MultOneHotDiscreteTensorSpec
     DiscreteTensorSpec

examples/dreamer/dreamer_utils.py

@@ -5,7 +5,7 @@
 from dataclasses import dataclass, field as dataclass_field
 from typing import Any, Callable, Optional, Sequence, Union
 
-from torchrl.data import NdUnboundedContinuousTensorSpec
+from torchrl.data import UnboundedContinuousTensorSpec
 from torchrl.envs import ParallelEnv
 from torchrl.envs.common import EnvBase
 from torchrl.envs.env_creator import env_creator, EnvCreator
@@ -125,8 +125,8 @@ def make_env_transforms(
     )
 
     default_dict = {
-        "state": NdUnboundedContinuousTensorSpec(cfg.state_dim),
-        "belief": NdUnboundedContinuousTensorSpec(cfg.rssm_hidden_dim),
+        "state": UnboundedContinuousTensorSpec(cfg.state_dim),
+        "belief": UnboundedContinuousTensorSpec(cfg.rssm_hidden_dim),
     }
     env.append_transform(
         TensorDictPrimer(random=False, default_value=0, **default_dict)

test/mocking_classes.py

@@ -13,8 +13,6 @@
     CompositeSpec,
     DiscreteTensorSpec,
     MultOneHotDiscreteTensorSpec,
-    NdBoundedTensorSpec,
-    NdUnboundedContinuousTensorSpec,
     OneHotDiscreteTensorSpec,
     UnboundedContinuousTensorSpec,
 )
@@ -26,20 +24,16 @@
     "one_hot": OneHotDiscreteTensorSpec,
     "categorical": DiscreteTensorSpec,
     "unbounded": UnboundedContinuousTensorSpec,
-    "ndbounded": NdBoundedTensorSpec,
-    "ndunbounded": NdUnboundedContinuousTensorSpec,
     "binary": BinaryDiscreteTensorSpec,
     "mult_one_hot": MultOneHotDiscreteTensorSpec,
     "composite": CompositeSpec,
 }
 
 default_spec_kwargs = {
-    BoundedTensorSpec: {"minimum": -1.0, "maximum": 1.0},
     OneHotDiscreteTensorSpec: {"n": 7},
     DiscreteTensorSpec: {"n": 7},
-    UnboundedContinuousTensorSpec: {},
-    NdBoundedTensorSpec: {"minimum": -torch.ones(4), "maxmimum": torch.ones(4)},
-    NdUnboundedContinuousTensorSpec: {
+    BoundedTensorSpec: {"minimum": -torch.ones(4), "maximum": torch.ones(4)},
+    UnboundedContinuousTensorSpec: {
         "shape": [
             7,
         ]
@@ -114,13 +108,13 @@ def __new__(
         **kwargs,
     ):
         if action_spec is None:
-            action_spec = NdUnboundedContinuousTensorSpec((1,))
+            action_spec = UnboundedContinuousTensorSpec((1,))
         if observation_spec is None:
             observation_spec = CompositeSpec(
-                observation=NdUnboundedContinuousTensorSpec((1,))
+                observation=UnboundedContinuousTensorSpec((1,))
             )
         if reward_spec is None:
-            reward_spec = NdUnboundedContinuousTensorSpec((1,))
+            reward_spec = UnboundedContinuousTensorSpec((1,))
         if input_spec is None:
             input_spec = CompositeSpec(action=action_spec)
         cls._reward_spec = reward_spec
@@ -175,18 +169,18 @@ def __new__(
         **kwargs,
     ):
         if action_spec is None:
-            action_spec = NdUnboundedContinuousTensorSpec((1,))
+            action_spec = UnboundedContinuousTensorSpec((1,))
         if input_spec is None:
             input_spec = CompositeSpec(
                 action=action_spec,
-                observation=NdUnboundedContinuousTensorSpec((1,)),
+                observation=UnboundedContinuousTensorSpec((1,)),
             )
         if observation_spec is None:
             observation_spec = CompositeSpec(
-                observation=NdUnboundedContinuousTensorSpec((1,))
+                observation=UnboundedContinuousTensorSpec((1,))
             )
         if reward_spec is None:
-            reward_spec = NdUnboundedContinuousTensorSpec((1,))
+            reward_spec = UnboundedContinuousTensorSpec((1,))
         cls._reward_spec = reward_spec
         cls._observation_spec = observation_spec
         cls._input_spec = input_spec
@@ -283,8 +277,8 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "observation"
             observation_spec = CompositeSpec(
-                observation=NdUnboundedContinuousTensorSpec(shape=torch.Size([size])),
-                observation_orig=NdUnboundedContinuousTensorSpec(
+                observation=UnboundedContinuousTensorSpec(shape=torch.Size([size])),
+                observation_orig=UnboundedContinuousTensorSpec(
                     shape=torch.Size([size])
                 ),
             )
@@ -370,13 +364,13 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "observation"
             observation_spec = CompositeSpec(
-                observation=NdUnboundedContinuousTensorSpec(shape=torch.Size([size])),
-                observation_orig=NdUnboundedContinuousTensorSpec(
+                observation=UnboundedContinuousTensorSpec(shape=torch.Size([size])),
+                observation_orig=UnboundedContinuousTensorSpec(
                     shape=torch.Size([size])
                 ),
             )
         if action_spec is None:
-            action_spec = NdBoundedTensorSpec(-1, 1, (7,))
+            action_spec = BoundedTensorSpec(-1, 1, (7,))
         if reward_spec is None:
             reward_spec = UnboundedContinuousTensorSpec()
 
@@ -471,10 +465,8 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "pixels"
             observation_spec = CompositeSpec(
-                pixels=NdUnboundedContinuousTensorSpec(shape=torch.Size([1, 7, 7])),
-                pixels_orig=NdUnboundedContinuousTensorSpec(
-                    shape=torch.Size([1, 7, 7])
-                ),
+                pixels=UnboundedContinuousTensorSpec(shape=torch.Size([1, 7, 7])),
+                pixels_orig=UnboundedContinuousTensorSpec(shape=torch.Size([1, 7, 7])),
             )
         if action_spec is None:
             action_spec = OneHotDiscreteTensorSpec(7)
@@ -523,10 +515,8 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "pixels"
             observation_spec = CompositeSpec(
-                pixels=NdUnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
-                pixels_orig=NdUnboundedContinuousTensorSpec(
-                    shape=torch.Size([7, 7, 3])
-                ),
+                pixels=UnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
+                pixels_orig=UnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
             )
         if action_spec is None:
             action_spec_cls = (
@@ -585,14 +575,14 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "pixels"
             observation_spec = CompositeSpec(
-                pixels=NdUnboundedContinuousTensorSpec(shape=torch.Size(pixel_shape)),
-                pixels_orig=NdUnboundedContinuousTensorSpec(
+                pixels=UnboundedContinuousTensorSpec(shape=torch.Size(pixel_shape)),
+                pixels_orig=UnboundedContinuousTensorSpec(
                     shape=torch.Size(pixel_shape)
                 ),
             )
 
         if action_spec is None:
-            action_spec = NdBoundedTensorSpec(-1, 1, pixel_shape[-1])
+            action_spec = BoundedTensorSpec(-1, 1, pixel_shape[-1])
 
         if reward_spec is None:
             reward_spec = UnboundedContinuousTensorSpec()
@@ -634,10 +624,8 @@ def __new__(
         if observation_spec is None:
             cls.out_key = "pixels"
             observation_spec = CompositeSpec(
-                pixels=NdUnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
-                pixels_orig=NdUnboundedContinuousTensorSpec(
-                    shape=torch.Size([7, 7, 3])
-                ),
+                pixels=UnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
+                pixels_orig=UnboundedContinuousTensorSpec(shape=torch.Size([7, 7, 3])),
             )
         return super().__new__(
             *args,
@@ -696,13 +684,13 @@ def __init__(
             batch_size=batch_size,
         )
         self.observation_spec = CompositeSpec(
-            hidden_observation=NdUnboundedContinuousTensorSpec((4,))
+            hidden_observation=UnboundedContinuousTensorSpec((4,))
         )
         self.input_spec = CompositeSpec(
-            hidden_observation=NdUnboundedContinuousTensorSpec((4,)),
-            action=NdUnboundedContinuousTensorSpec((1,)),
+            hidden_observation=UnboundedContinuousTensorSpec((4,)),
+            action=UnboundedContinuousTensorSpec((1,)),
         )
-        self.reward_spec = NdUnboundedContinuousTensorSpec((1,))
+        self.reward_spec = UnboundedContinuousTensorSpec((1,))
 
     def _reset(self, tensordict: TensorDict, **kwargs) -> TensorDict:
         td = TensorDict(

test/test_collector.py

@@ -28,11 +28,7 @@
     RandomPolicy,
 )
 from torchrl.collectors.utils import split_trajectories
-from torchrl.data import (
-    CompositeSpec,
-    NdUnboundedContinuousTensorSpec,
-    UnboundedContinuousTensorSpec,
-)
+from torchrl.data import CompositeSpec, UnboundedContinuousTensorSpec
 from torchrl.envs import EnvCreator, ParallelEnv, SerialEnv
 from torchrl.envs.libs.gym import _has_gym, GymEnv
 from torchrl.envs.transforms import TransformedEnv, VecNorm
@@ -942,7 +938,7 @@ def test_collector_output_keys(collector_class, init_random_frames, explicit_spe
         ],
     }
     if explicit_spec:
-        hidden_spec = NdUnboundedContinuousTensorSpec((1, hidden_size))
+        hidden_spec = UnboundedContinuousTensorSpec((1, hidden_size))
         policy_kwargs["spec"] = CompositeSpec(
             action=UnboundedContinuousTensorSpec(),
             hidden1=hidden_spec,

test/test_cost.py

@@ -28,12 +28,12 @@
 from tensordict.tensordict import assert_allclose_td, TensorDict
 from torch import autograd, nn
 from torchrl.data import (
+    BoundedTensorSpec,
     CompositeSpec,
     DiscreteTensorSpec,
     MultOneHotDiscreteTensorSpec,
-    NdBoundedTensorSpec,
-    NdUnboundedContinuousTensorSpec,
     OneHotDiscreteTensorSpec,
+    UnboundedContinuousTensorSpec,
 )
 from torchrl.data.postprocs.postprocs import MultiStep
 from torchrl.envs.model_based.dreamer import DreamerEnv
@@ -130,7 +130,7 @@ def _create_mock_actor(
         elif action_spec_type == "categorical":
             action_spec = DiscreteTensorSpec(action_dim)
         elif action_spec_type == "nd_bounded":
-            action_spec = NdBoundedTensorSpec(
+            action_spec = BoundedTensorSpec(
                 -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
             )
         else:
@@ -417,7 +417,7 @@ class TestDDPG:
 
     def _create_mock_actor(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         module = nn.Linear(obs_dim, action_dim)
@@ -647,7 +647,7 @@ class TestSAC:
 
     def _create_mock_actor(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         net = NormalParamWrapper(nn.Linear(obs_dim, 2 * action_dim))
@@ -1026,7 +1026,7 @@ class TestREDQ:
 
     def _create_mock_actor(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         net = NormalParamWrapper(nn.Linear(obs_dim, 2 * action_dim))
@@ -1481,7 +1481,7 @@ class TestPPO:
 
     def _create_mock_actor(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         net = NormalParamWrapper(nn.Linear(obs_dim, 2 * action_dim))
@@ -1504,7 +1504,7 @@ def _create_mock_value(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
 
     def _create_mock_actor_value(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         base_layer = nn.Linear(obs_dim, 5)
@@ -1808,7 +1808,7 @@ class TestA2C:
 
     def _create_mock_actor(self, batch=2, obs_dim=3, action_dim=4, device="cpu"):
         # Actor
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(action_dim), torch.ones(action_dim), (action_dim,)
         )
         net = NormalParamWrapper(nn.Linear(obs_dim, 2 * action_dim))
@@ -2022,7 +2022,7 @@ def test_reinforce_value_net(self, advantage, gradient_mode, delay_value):
             distribution_class=TanhNormal,
             return_log_prob=True,
             in_keys=["loc", "scale"],
-            spec=NdUnboundedContinuousTensorSpec(n_act),
+            spec=UnboundedContinuousTensorSpec(n_act),
         )
         if advantage == "gae":
             advantage = GAE(
@@ -2146,8 +2146,8 @@ def _create_value_data(
     def _create_world_model_model(self, rssm_hidden_dim, state_dim, mlp_num_units=200):
         mock_env = TransformedEnv(ContinuousActionConvMockEnv(pixel_shape=[3, 64, 64]))
         default_dict = {
-            "state": NdUnboundedContinuousTensorSpec(state_dim),
-            "belief": NdUnboundedContinuousTensorSpec(rssm_hidden_dim),
+            "state": UnboundedContinuousTensorSpec(state_dim),
+            "belief": UnboundedContinuousTensorSpec(rssm_hidden_dim),
         }
         mock_env.append_transform(
             TensorDictPrimer(random=False, default_value=0, **default_dict)
@@ -2221,8 +2221,8 @@ def _create_world_model_model(self, rssm_hidden_dim, state_dim, mlp_num_units=20
     def _create_mb_env(self, rssm_hidden_dim, state_dim, mlp_num_units=200):
         mock_env = TransformedEnv(ContinuousActionConvMockEnv(pixel_shape=[3, 64, 64]))
         default_dict = {
-            "state": NdUnboundedContinuousTensorSpec(state_dim),
-            "belief": NdUnboundedContinuousTensorSpec(rssm_hidden_dim),
+            "state": UnboundedContinuousTensorSpec(state_dim),
+            "belief": UnboundedContinuousTensorSpec(rssm_hidden_dim),
         }
         mock_env.append_transform(
             TensorDictPrimer(random=False, default_value=0, **default_dict)
@@ -2270,8 +2270,8 @@ def _create_mb_env(self, rssm_hidden_dim, state_dim, mlp_num_units=200):
     def _create_actor_model(self, rssm_hidden_dim, state_dim, mlp_num_units=200):
         mock_env = TransformedEnv(ContinuousActionConvMockEnv(pixel_shape=[3, 64, 64]))
         default_dict = {
-            "state": NdUnboundedContinuousTensorSpec(state_dim),
-            "belief": NdUnboundedContinuousTensorSpec(rssm_hidden_dim),
+            "state": UnboundedContinuousTensorSpec(state_dim),
+            "belief": UnboundedContinuousTensorSpec(rssm_hidden_dim),
         }
         mock_env.append_transform(
             TensorDictPrimer(random=False, default_value=0, **default_dict)

test/test_exploration.py

@@ -11,7 +11,7 @@
 from scipy.stats import ttest_1samp
 from tensordict.tensordict import TensorDict
 from torch import nn
-from torchrl.data import CompositeSpec, NdBoundedTensorSpec
+from torchrl.data import BoundedTensorSpec, CompositeSpec
 from torchrl.envs.transforms.transforms import gSDENoise
 from torchrl.envs.utils import set_exploration_mode
 from torchrl.modules import SafeModule, SafeSequential
@@ -61,7 +61,7 @@ def test_ou_wrapper(device, d_obs=4, d_act=6, batch=32, n_steps=100, seed=0):
     torch.manual_seed(seed)
     net = NormalParamWrapper(nn.Linear(d_obs, 2 * d_act)).to(device)
     module = SafeModule(net, in_keys=["observation"], out_keys=["loc", "scale"])
-    action_spec = NdBoundedTensorSpec(-torch.ones(d_act), torch.ones(d_act), (d_act,))
+    action_spec = BoundedTensorSpec(-torch.ones(d_act), torch.ones(d_act), (d_act,))
     policy = ProbabilisticActor(
         spec=action_spec,
         module=module,
@@ -106,7 +106,7 @@ def test_additivegaussian_sd(
     ):
         torch.manual_seed(seed)
         net = NormalParamWrapper(nn.Linear(d_obs, 2 * d_act)).to(device)
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(d_act, device=device),
             torch.ones(d_act, device=device),
             (d_act,),
@@ -173,7 +173,7 @@ def test_additivegaussian_wrapper(
         torch.manual_seed(seed)
         net = NormalParamWrapper(nn.Linear(d_obs, 2 * d_act)).to(device)
         module = SafeModule(net, in_keys=["observation"], out_keys=["loc", "scale"])
-        action_spec = NdBoundedTensorSpec(
+        action_spec = BoundedTensorSpec(
             -torch.ones(d_act, device=device),
             torch.ones(d_act, device=device),
             (d_act,),
@@ -244,7 +244,7 @@ def test_gsde(
         module = SafeModule(wrapper, in_keys=in_keys, out_keys=["loc", "scale"])
         distribution_class = TanhNormal
         distribution_kwargs = {"min": -bound, "max": bound}
-    spec = NdBoundedTensorSpec(
+    spec = BoundedTensorSpec(
         -torch.ones(action_dim) * bound, torch.ones(action_dim) * bound, (action_dim,)
     ).to(device)