mindspore.dataset.Dataset.repeat

mindspore.dataset.Dataset.repeat(count=None)

重复此数据集 count 次。如果 count 为None或-1，则无限重复迭代。

说明

repeat和batch的顺序反映了batch的数量。建议：repeat操作在batch操作之后使用。

参数：

• count (int) - 数据集重复的次数。默认值：None。

返回：

RepeatDataset，repeat操作后的数据集对象。

样例：

>>> # dataset is an instance object of Dataset
>>>
>>> # Create a dataset where the dataset is repeated for 50 epochs
>>> dataset = dataset.repeat(50)
>>>
>>> # Create a dataset where each epoch is shuffled individually
>>> dataset = dataset.shuffle(10)
>>> dataset = dataset.repeat(50)
>>>
>>> # Create a dataset where the dataset is first repeated for
>>> # 50 epochs before shuffling. The shuffle operation will treat
>>> # the entire 50 epochs as one big dataset.
>>> dataset = dataset.repeat(50)
>>> dataset = dataset.shuffle(10)