enumerate返回值有两个:一个是序号,也就是在这里的batch地址,一个是数据train_ids for i, data in enumerate(train_loader,1): 此代码中1,是batch从batch=1开始,也就是batch的地址是从1开始算起,不是0开始算起。batch仍然是3个。就算batch从8开始,他也是三份,分别是8,9,10 train_
调用 enumerate(dataloader) 时每次都会读出一个 batch_size 大小的数据。例如,数据集中总共包含 245 张图像,train_loader = dataloader(dataset, batch_size=32, drop_last=True) 被实例化时,经过以下代码后输出的 count 为 224(正好等于32*7),而多出来的 245-224=21 张图像不够一个 batch 因此被 drop 掉...
程序停在了 for step,data in enumerate(loader),下面是部分bug信息 Traceback (most recent call last): ... File ".../torch/utils/data/dataloader.py", line 206, in __next__ idx, batch = self.data_queue.get() File "/usr/lib/python2.7/multiprocessing/queues.py", line 378, in get ret...
for step,(batch_x,batch_y) in enumerate(train_loader): ... 不能理解这里的enumerate怎么会循环得到三个数,step, batch_x, batch_y?看的官方文档里面也只有遍历得到labels和targets的情况。 根据上下文,batch_x训练数据,batch_y是训练目标,两者是用来求误差的。但是关于enumerate函数用法不能理解。求指教 202...
下面,我们再引入for循环 for i ,data in enumerate(season,0): print(i ,data) 输出结果: 0 spring 1 summer 2 fall 3 winter 在for i , data in enumerate(trainloader, 0)中我们常碰见0变为1,其实就是将索引从0开始修改为从1开始,那么i,data 第一次循环时分别就是 1 、spring ,第二次循环就是...
IUIDataSourceModelAssociation IUIDataSourceTranslating IUIDocumentBrowserViewControllerDelegate IUIDocumentInteractionControllerDelegate IUIDocumentMenuDelegate IUIDocumentPickerDelegate IUIDragAnimating IUIDragDropSession IUIDragInteractionDelegate IUIDragSession IUIDropInteractionDelegate IUIDropSession IUIDynamicAnimator...
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IUIDataSourceModelAssociation IUIDataSourceTranslating IUIDocumentBrowserViewControllerDelegate IUIDocumentInteractionControllerDelegate IUIDocumentMenuDelegate IUIDocumentPickerDelegate IUIDragAnimating IUIDragDropSession IUIDragInteractionDelegate IUIDragSession IUIDropInteractionDelegate IUIDropSession IUIDynamicAnimator...
IUIDataSourceModelAssociation IUIDataSourceTranslating IUIDocumentBrowserViewControllerDelegate IUIDocumentInteractionControllerDelegate IUIDocumentMenuDelegate IUIDocumentPickerDelegate IUIDragAnimating IUIDragDropSession IUIDragInteractionDelegate IUIDragSession IUIDropInteractionDelegate IUIDropSession IUIDynamicAnimator...
IUIDataSourceModelAssociation IUIDataSourceTranslating IUIDocumentBrowserViewControllerDelegate IUIDocumentInteractionControllerDelegate IUIDocumentMenuDelegate IUIDocumentPickerDelegate IUIDragAnimating IUIDragDropSession IUIDragInteractionDelegate IUIDragSession IUIDropInteractionDelegate IUIDropSession IUIDynamicAnimator...