I'm getting this IndexError: single positional indexer is out-of-bounds for the below code

Question

数据集有 50 行和 75 列。我收到此单个位置索引器越界错误。谁能帮我解决这个问题？

def load_real_samples():
    # load cifar10 dataset
    #(trainX, _), (_, _) = load_data()
    dataset = []
    #print(trainX.shape)
    paths = pd.read_csv(r"C:\Users\Vaishnav\Documents\MiniProject\data_Mild.csv")
    paths.head(5)
    for i in range(1,50):
        if(os.path.exists(paths.iloc[i][i])):
            im = Image.open(paths.iloc[i][i])
            resized_im = im.resize((round(im.size[0]*0.0625), round(im.size[1]*0.0625)))
            image=asarray(resized_im)
            data = asarray(image)
            dataset.append(data)
    trainX=np.array(dataset)
    #y_train=np.array([0,0,0,0])
    print(trainX.shape)
    X = trainX.astype('float32')
    X = (X - 127.5) / 127.5
    return X
dataset = load_real_samples()

错误：

paths.head(5)
      9     for i in range(1,50):
---> 10         if(os.path.exists(paths.iloc[i][i])):
     11             im = Image.open(paths.iloc[i][i])
     12             resized_im = im.resize((round(im.size[0]*0.0625), round(im.size[1]*0.0625)))

IndexError: single positional indexer is out-of-bounds

Answer 1

Index out-of-bounds 表示路径数据框中的索引少于 50 个。此外，当您使用 iloc[i][i] 时，这意味着您在 first_row 中访问 i-row 和 i-element，如果它不是单元格中的列表而是字符串，您将得到一个关键错误。尝试以下操作：

for i in range(1, paths.shape[0]):
        if(os.path.exists(paths.iloc[i].values[0])):
            im = Image.open(paths.iloc[i].values[0])

或者尝试使用避免使用 range() 的路径访问您的列：

for path in paths.your_column_with_path_strings:
         if(os.path.exists(path)):
            im = Image.open(path)

I'm getting this IndexError: single positional indexer is out-of-bounds for the below code

I'm getting this IndexError: single positional indexer is out-of-bounds for the below code

python

python-3.x

pandas