UCIHousing
该类是对 UCI housing 测试数据集的实现。
参数
data_file (str) - 保存数据的路径,如果参数
download设置为 True,可设置为 None。默认为 None。mode (str) - 'train' 或 'test' 模式。默认为 'train'。
download (bool) - 如果
data_file未设置,是否自动下载数据集。默认为 True。
返回值
Dataset,UCI housing 数据集实例。
代码示例
>>> import paddle
>>> from paddle.text.datasets import UCIHousing
>>> class SimpleNet(paddle.nn.Layer):
... def __init__(self):
... super().__init__()
...
... def forward(self, feature, target):
... return paddle.sum(feature), target
>>> paddle.disable_static()
>>> uci_housing = UCIHousing(mode='train')
>>> for i in range(10):
... feature, target = uci_housing[i]
... feature = paddle.to_tensor(feature)
... target = paddle.to_tensor(target)
...
... model = SimpleNet()
... feature, target = model(feature, target)
... print(feature.shape, target.numpy())
paddle.Size([]) [24.]
paddle.Size([]) [21.6]
paddle.Size([]) [34.7]
paddle.Size([]) [33.4]
paddle.Size([]) [36.2]
paddle.Size([]) [28.7]
paddle.Size([]) [22.9]
paddle.Size([]) [27.1]
paddle.Size([]) [16.5]
paddle.Size([]) [18.9]