!8734 Code_docs updating notes of examples in nn_folder

From: @zhangz0911gm
Reviewed-by: @zhunaipan,@liangchenghui
Signed-off-by: @liangchenghui

mindspore/nn/loss/loss.py

@@ -136,7 +136,8 @@ class MSELoss(_Loss):
         >>> loss = nn.MSELoss()
         >>> input_data = Tensor(np.array([1, 2, 3]), mindspore.float32)
         >>> target_data = Tensor(np.array([1, 2, 2]), mindspore.float32)
-        >>> loss(input_data, target_data)
+        >>> output = loss(input_data, target_data)
+        >>> print(output)
         0.33333334
     """
     def construct(self, base, target):
@@ -495,7 +496,8 @@ class BCELoss(_Loss):
         >>> loss = nn.BCELoss(weight=weight, reduction='mean')
         >>> inputs = Tensor(np.array([[0.1, 0.2, 0.3], [0.5, 0.7, 0.9]]), mindspore.float32)
         >>> labels = Tensor(np.array([[0, 1, 0], [0, 0, 1]]), mindspore.float32)
-        >>> loss(inputs, labels)
+        >>> output = loss(inputs, labels)
+        >>> print(output)
         1.8952923
     """
 
@@ -553,7 +555,8 @@ class CosineEmbeddingLoss(_Loss):
         >>> x2 = Tensor(np.array([[0.4, 1.2], [-0.4, -0.9]]), mindspore.float32)
         >>> y = Tensor(np.array([1,-1]), mindspore.int32)
         >>> cosine_embedding_loss = nn.CosineEmbeddingLoss()
-        >>> cosine_embedding_loss(x1, x2, y)
+        >>> output = cosine_embedding_loss(x1, x2, y)
+        >>> print(output)
         [0.0003426671]
     """
     def __init__(self, margin=0.0, reduction="mean"):

mindspore/nn/metrics/topk.py

@@ -34,7 +34,7 @@ class TopKCategoricalAccuracy(Metric):
 
     Examples:
         >>> x = Tensor(np.array([[0.2, 0.5, 0.3, 0.6, 0.2], [0.1, 0.35, 0.5, 0.2, 0.],
-        >>>         [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
+        ...         [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
         >>> y = Tensor(np.array([2, 0, 1]), mindspore.float32)
         >>> topk = nn.TopKCategoricalAccuracy(3)
         >>> topk.clear()
@@ -98,7 +98,7 @@ class Top1CategoricalAccuracy(TopKCategoricalAccuracy):
 
     Examples:
         >>> x = Tensor(np.array([[0.2, 0.5, 0.3, 0.6, 0.2], [0.1, 0.35, 0.5, 0.2, 0.],
-        >>>         [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
+        ...         [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
         >>> y = Tensor(np.array([2, 0, 1]), mindspore.float32)
         >>> topk = nn.Top1CategoricalAccuracy()
         >>> topk.clear()
@@ -116,7 +116,7 @@ class Top5CategoricalAccuracy(TopKCategoricalAccuracy):
 
     Examples:
         >>> x = Tensor(np.array([[0.2, 0.5, 0.3, 0.6, 0.2], [0.1, 0.35, 0.5, 0.2, 0.],
-        >>>            [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
+        ...            [0.9, 0.6, 0.2, 0.01, 0.3]]), mindspore.float32)
         >>> y = Tensor(np.array([2, 0, 1]), mindspore.float32)
         >>> topk = nn.Top5CategoricalAccuracy()
         >>> topk.clear()

mindspore/nn/optim/adam.py

@@ -281,8 +281,8 @@ class Adam(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.Adam(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use default learning rate of 0.1 and weight decay of 0.01.
         >>> # The no_conv_params's parameters will use learning rate of 0.01 and defaule weight decay of 0.0.
@@ -416,8 +416,8 @@ class AdamWeightDecay(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.AdamWeightDecay(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use default learning rate of 0.1 and weight decay of 0.01.
         >>> # The no_conv_params's parameters will use learning rate of 0.01 and default weight decay of 0.0.

mindspore/nn/optim/ftrl.py

@@ -135,8 +135,8 @@ class FTRL(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.FTRL(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use weight decay of 0.01.
         >>> # The no_conv_params's parameters will use default weight decay of 0.0.

mindspore/nn/optim/lamb.py

@@ -245,8 +245,8 @@ class Lamb(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': poly_decay_lr},
-        >>>                 {'order_params': net.trainable_params(0.01, 0.0001, 10, 0.5)}]
+        ...                 {'params': no_conv_params, 'lr': poly_decay_lr},
+        ...                 {'order_params': net.trainable_params(0.01, 0.0001, 10, 0.5)}]
         >>> optim = nn.Lamb(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use default learning rate of 0.1 and weight decay of 0.01.
         >>> # The no_conv_params's parameters will use dynamic learning rate of poly decay learning rate and default

mindspore/nn/optim/lazyadam.py

@@ -192,8 +192,8 @@ class LazyAdam(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.LazyAdam(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use default learning rate of 0.1 and weight decay of 0.01.
         >>> # The no_conv_params's parameters will use learning rate of 0.01 and default weight decay of 0.0.

mindspore/nn/optim/momentum.py

@@ -113,8 +113,8 @@ class Momentum(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.Momentum(group_params, learning_rate=0.1, momentum=0.9, weight_decay=0.0)
         >>> # The conv_params's parameters will use a learning rate of default value 0.1 and a weight decay of 0.01.
         >>> # The no_conv_params's parameters will use a learning rate of 0.01 and a weight decay of default value 0.0.

mindspore/nn/optim/proximal_ada_grad.py

@@ -116,8 +116,8 @@ class ProximalAdagrad(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.ProximalAdagrad(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use default learning rate of 0.1 and weight decay of 0.01.
         >>> # The no_conv_params's parameters will use learning rate of 0.01 and default weight decay of 0.0.

mindspore/nn/optim/rmsprop.py

@@ -139,8 +139,8 @@ class RMSProp(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.RMSProp(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use a learning rate of default value 0.1 and a weight decay of 0.01.
         >>> # The no_conv_params's parameters will use a learning rate of 0.01 and a weight decay of default value 0.0.

mindspore/nn/optim/sgd.py

@@ -112,8 +112,8 @@ class SGD(Optimizer):
         >>> conv_params = list(filter(lambda x: 'conv' in x.name, net.trainable_params()))
         >>> no_conv_params = list(filter(lambda x: 'conv' not in x.name, net.trainable_params()))
         >>> group_params = [{'params': conv_params, 'weight_decay': 0.01},
-        >>>                 {'params': no_conv_params, 'lr': 0.01},
-        >>>                 {'order_params': net.trainable_params()}]
+        ...                 {'params': no_conv_params, 'lr': 0.01},
+        ...                 {'order_params': net.trainable_params()}]
         >>> optim = nn.SGD(group_params, learning_rate=0.1, weight_decay=0.0)
         >>> # The conv_params's parameters will use a learning rate of default value 0.1 and a weight decay of 0.01.
         >>> # The no_conv_params's parameters will use a learning rate of 0.01 and a weight decay of default value 0.0.

mindspore/nn/probability/bnn_layers/conv_variational.py

@@ -252,7 +252,8 @@ class ConvReparam(_ConvVariational):
     Examples:
         >>> net = ConvReparam(120, 240, 4, has_bias=False)
         >>> input = Tensor(np.ones([1, 120, 1024, 640]), mindspore.float32)
-        >>> net(input).shape
+        >>> output = net(input).shape
+        >>> print(output)
         (1, 240, 1024, 640)
     """
 

mindspore/nn/probability/bnn_layers/dense_variational.py

@@ -190,7 +190,8 @@ class DenseReparam(_DenseVariational):
     Examples:
         >>> net = DenseReparam(3, 4)
         >>> input = Tensor(np.random.randint(0, 255, [2, 3]), mindspore.float32)
-        >>> net(input).shape
+        >>> output = net(input).shape
+        >>> print(output)
         (2, 4)
     """
 

mindspore/nn/probability/toolbox/uncertainty_evaluation.py

@@ -59,18 +59,20 @@ class UncertaintyEvaluation:
         >>> load_param_into_net(network, param_dict)
         >>> ds_train = create_dataset('workspace/mnist/train')
         >>> evaluation = UncertaintyEvaluation(model=network,
-        >>>                                    train_dataset=ds_train,
-        >>>                                    task_type='classification',
-        >>>                                    num_classes=10,
-        >>>                                    epochs=1,
-        >>>                                    epi_uncer_model_path=None,
-        >>>                                    ale_uncer_model_path=None,
-        >>>                                    save_model=False)
+        ...                                    train_dataset=ds_train,
+        ...                                    task_type='classification',
+        ...                                    num_classes=10,
+        ...                                    epochs=1,
+        ...                                    epi_uncer_model_path=None,
+        ...                                    ale_uncer_model_path=None,
+        ...                                    save_model=False)
         >>> epistemic_uncertainty = evaluation.eval_epistemic_uncertainty(eval_data)
         >>> aleatoric_uncertainty = evaluation.eval_aleatoric_uncertainty(eval_data)
-        >>> epistemic_uncertainty.shape
+        >>> output = epistemic_uncertainty.shape
+        >>> print(output)
         (32, 10)
-        >>> aleatoric_uncertainty.shape
+        >>> output = aleatoric_uncertainty.shape
+        >>> print(output)
         (32,)
     """