【发布时间】:2020-10-11 04:42:15
【问题描述】:
最近我在做一个产品分类项目,我有一个预先分类的数据集“train”,其中包含与每个产品类别对应的 41 个文件夹,其 csv 文件列出了图像名称及其类别。
然后,我有另一个包含一堆未分类产品的“测试”数据集,该项目希望对这些图片进行分类并输出一个带有“名称”和“类别”的 csv 文件
我在这个项目中使用 google colab,在我成功加载并挂载所有文件并准备扫描训练后的图像后,我收到了一个错误,下面是我的代码
train_image = []
for i in tqdm(range(train.shape[0])):
img = image.load_img('content/train/train/'+train[i].astype('str')+'.jpg', target_size=(28,28,1))
img = image.img_to_array(img)
img = img/255
train_image.append(img)
X = np.array(train_image)
这是我得到的错误:
/usr/local/lib/python3.6/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
2645 try:
-> 2646 return self._engine.get_loc(key)
2647 except KeyError:
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
KeyError: 0
During handling of the above exception, another exception occurred:
KeyError Traceback (most recent call last)
2 frames
/usr/local/lib/python3.6/dist-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance)
2646 return self._engine.get_loc(key)
2647 except KeyError:
-> 2648 return self._engine.get_loc(self._maybe_cast_indexer(key))
2649 indexer = self.get_indexer([key], method=method, tolerance=tolerance)
2650 if indexer.ndim > 1 or indexer.size > 1:
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.PyObjectHashTable.get_item()
KeyError: 0
这就是我的培训目录在 google colab 中的样子
--content
↳train
↳train
↳0
↳1
....
↳41
如何消除该错误?
【问题讨论】:
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欢迎来到 SO;请注意,外部资源(教程等)的建议是 strictly off-topic 此处(已编辑问题以将其删除)。
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@desertnaut 哦,好的,谢谢你的提醒,我真的是新来的
标签: python pandas machine-learning image-processing google-colaboratory