Fix conditions rendering

pina/condition/condition.py

@@ -29,37 +29,49 @@ def warning_function(new, old):
 
 class Condition:
     """
-    The class ``Condition`` is used to represent the constraints (physical
+    Represents constraints (such as physical equations, boundary conditions,
-    equations, boundary conditions, etc.) that should be satisfied in the
+    etc.) that must be satisfied in a given problem. Condition objects are used
-    problem at hand. Condition objects are used to formulate the
+    to formulate the PINA
-    PINA :class:`~pina.problem.abstract_problem.AbstractProblem` object.
+    :class:`~pina.problem.abstract_problem.AbstractProblem` object.
-    Conditions can be specified in four ways:
 
-        1. By specifying the input and target of the condition; in such a
+    There are different types of conditions:
-        case, the model is trained to produce the output points given the input
+
-        points. Those points can either be torch.Tensor, LabelTensors, Graph.
+    - :class:`~pina.condition.input_target_condition.InputTargetCondition`:
-        Based on the type of the input and target, there are different
+      Defined by specifying both the input and the target of the condition. In
-        implementations of the condition. For more details, see
+      this case, the model is trained to produce the target given the input. The
+      input and output   data must be one of the :class:`torch.Tensor`,
+      :class:`~pina.label_tensor.LabelTensor`,
+      :class:`~torch_geometric.data.Data`, or :class:`~pina.graph.Graph`.
+      Different implementations exist depending on the type of input and target.
+      For more details, see
       :class:`~pina.condition.input_target_condition.InputTargetCondition`.
 
-        2. By specifying the domain and the equation of the condition; in such
+    - :class:`~pina.condition.domain_equation_condition.DomainEquationCondition`
-        a case, the model is trained to minimize the equation residual by
+      : Defined by specifying both the domain and the equation of the condition.
-        evaluating it at some samples of the domain.
+      Here, the model is trained to minimize the equation residual by evaluating
+      it at sampled points within the domain.
 
-        3. By specifying the input and the equation of the condition; in
+    - :class:`~pina.condition.input_equation_condition.InputEquationCondition`:
-        such a case, the model is trained to minimize the equation residual by
+      Defined by specifying the input and the equation of the condition. In this
-        evaluating it at the passed input points. The input points must be
+      case, the model is trained to minimize the equation residual by evaluating
-        a LabelTensor. Based on the type of the input, there are different
+      it at the provided input. The input must be either a
-        implementations of the condition. For more details, see
+      :class:`~pina.label_tensor.LabelTensor` or a :class:`~pina.graph.Graph`.
-        :class:`~pina.condition.input_equation_condition.InputEquationCondition`
+      Different implementations exist depending on the type of input. For more
-        .
+      details, see
+      :class:`~pina.condition.input_equation_condition.InputEquationCondition`.
 
-        4. By specifying only the input data; in such a case the model is
+    - :class:`~pina.condition.data_condition.DataCondition`:
-        trained with an unsupervised costum loss and uses the data in training.
+      Defined by specifying only the input. In this case, the model is trained
-        Additionaly conditioning variables can be passed, whenever the model
+      with an unsupervised custom loss while using the provided data during
-        has extra conditioning variable it depends on. Based on the type of the
+      training. The input data must be one of :class:`torch.Tensor`,
-        input, there are different implementations of the condition. For more
+      :class:`~pina.label_tensor.LabelTensor`,
-        details, see :class:`~pina.condition.data_condition.DataCondition`.
+      :class:`~torch_geometric.data.Data`, or :class:`~pina.graph.Graph`.
+      Additionally, conditional variables can be provided when the model
+      depends on extra parameters. These conditional variables must be either
+      :class:`torch.Tensor` or :class:`~pina.label_tensor.LabelTensor`.
+      Different implementations exist depending on the type of input.
+      For more details, see
+      :class:`~pina.condition.data_condition.DataCondition`.
 
     :Example:
 
@@ -94,7 +106,8 @@ class Condition:
 
     def __new__(cls, *args, **kwargs):
         """
-        Check the input arguments and return the appropriate Condition object.
+        Instantiate the appropriate Condition object based on the keyword
+        arguments passed.
 
         :raises ValueError: If no keyword arguments are passed.
         :raises ValueError: If the keyword arguments are invalid.

pina/condition/condition_interface.py

@@ -27,8 +27,8 @@ class ConditionInterface(metaclass=ABCMeta):
         """
         Return the problem to which the condition is associated.
 
-        :return: Problem to which the condition is associated
+        :return: Problem to which the condition is associated.
-        :rtype: pina.problem.AbstractProblem
+        :rtype: ~pina.problem.abstract_problem.AbstractProblem
         """
         return self._problem
 

pina/condition/data_condition.py

@@ -69,13 +69,12 @@ class DataCondition(ConditionInterface):
         :type input: torch.Tensor | LabelTensor | Graph | Data | list[Graph] |
             list[Data] | tuple[Graph] | tuple[Data]
         :param conditional_variables: Conditional variables for the condition.
-        :type conditional_variables: torch.Tensor or LabelTensor
+        :type conditional_variables: torch.Tensor | LabelTensor
 
         .. note::
-            If either ``input`` is composed by a list of
+            If ``input`` consists of a list of :class:`~pina.graph.Graph` or
-            :class:`~pina.graph.Graph` or :class:`~torch_geometric.data.Data`,
+            :class:`~torch_geometric.data.Data`, all elements must have the same
-            all elements must have the same structure (keys and data
+            structure (keys and data types)
-            types)
         """
 
         super().__init__()

pina/condition/input_equation_condition.py

@@ -16,9 +16,9 @@ class InputEquationCondition(ConditionInterface):
     used in a Physics Informed problems. Based on the type of the input,
     different condition implementations are available:
 
-    - :class:`InputTensorEquationCondition`: For
+    - :class:`InputTensorEquationCondition`: For \
         :class:`~pina.label_tensor.LabelTensor` input data.
-    - :class:`InputGraphEquationCondition`: For :class:`~pina.graph.Graph`
+    - :class:`InputGraphEquationCondition`: For :class:`~pina.graph.Graph` \
         input data.
     """
 
@@ -65,19 +65,18 @@ class InputEquationCondition(ConditionInterface):
 
     def __init__(self, input, equation):
         """
-        Initialize the InputEquationCondition by storing the input and equation.
+        Initialize the object by storing the input data and equation object.
 
         :param input: Input data for the condition.
-        :type input: pina.label_tensor.LabelTensor | pina.graph.Graph |
+        :type input: LabelTensor | Graph |
-            list[pina.graph.Graph] | tuple[pina.graph.Graph]
+            list[Graph] | tuple[Graph]
         :param EquationInterface equation: Equation object containing the
             equation function.
 
         .. note::
-            If ``input`` is composed by a list of :class:`~pina.graph.Graph`
+            If ``input`` consists of a list of :class:`~pina.graph.Graph` or
-            objects, all elements must have the same structure (keys and data
+            :class:`~torch_geometric.data.Data`, all elements must have the same
-            types). Moreover, at least one attribute must be a
+            structure (keys and data types)
-            :class:`~pina.label_tensor.LabelTensor`.
         """
 
         super().__init__()

pina/condition/input_target_condition.py

@@ -15,17 +15,17 @@ class InputTargetCondition(ConditionInterface):
     both supervised learning and Physics-informed problems. Based on the type of
     the input and target, different condition implementations are available:
 
-    - :class:`TensorInputTensorTargetCondition`: For :class:`torch.Tensor` or
+    - :class:`TensorInputTensorTargetCondition`: For :class:`torch.Tensor` or \
         :class:`~pina.label_tensor.LabelTensor` input and target data.
-    - :class:`TensorInputGraphTargetCondition`: For :class:`torch.Tensor` or
+    - :class:`TensorInputGraphTargetCondition`: For :class:`torch.Tensor` or \
-        :class:`~pina.label_tensor.LabelTensor` input and
+        :class:`~pina.label_tensor.LabelTensor` input and \
-        :class:`~pina.graph.Graph` or :class:`~torch_geometric.data.Data`
+        :class:`~pina.graph.Graph` or :class:`torch_geometric.data.Data` \
         target data.
-    - :class:`GraphInputTensorTargetCondition`: For :class:`~pina.graph.Graph`
+    - :class:`GraphInputTensorTargetCondition`: For :class:`~pina.graph.Graph` \
-        or :class:`~torch_geometric.data.Data` input and :class:`torch.Tensor`
+        or :class:`~torch_geometric.data.Data` input and :class:`torch.Tensor` \
         or :class:`~pina.label_tensor.LabelTensor` target data.
-    - :class:`GraphInputGraphTargetCondition`: For :class:`~pina.graph.Graph` or
+    - :class:`GraphInputGraphTargetCondition`: For :class:`~pina.graph.Graph` \
-        :class:`~torch_geometric.data.Data` input and target data.
+        or :class:`~torch_geometric.data.Data` input and target data.
     """
 
     __slots__ = ["input", "target"]
@@ -104,10 +104,10 @@ class InputTargetCondition(ConditionInterface):
             list[Data] | tuple[Graph] | tuple[Data]
 
         .. note::
-            If either ``input`` or ``target`` are composed by a list of
+            If either input or target consists of a list of
-            :class:`~pina.graph.Graph` or :class:`~torch_geometric.data.Data`
+            :class:~pina.graph.Graph or :class:~torch_geometric.data.Data
-            objects, all elements must have the same structure (keys and data
+            objects, all elements must have the same structure (matching
-            types)
+            keys and data types).
         """
 
         super().__init__()