IndexError: too many indices for array: array is 1-dimensional, but 3 were indexed
时间: 2024-06-14 16:04:31 浏览: 173
这个错误是由于对一个一维数组使用了超过其维度的索引导致的。在你提供的引用中,报错是因为对一个一维数组使用了两个索引。在你提供的引用中,代码尝试将一个二维数组改变为三维数组,但是使用了三个索引。
以下是两个例子来解释这个错误:
1. 对一维数组使用超过其维度的索引:
```python
import numpy as np
a = np.array([1, 2, 3, 4, 5])
print(a[0]) # 输出:1
print(a[1]) # 输出:2
print(a[2]) # 输出:3
print(a[3]) # 输出:4
print(a[4]) # 输出:5
print(a[5]) # 报错:IndexError: too many indices for array: array is 1-dimensional, but 2 were indexed
```
2. 将二维数组改变为三维数组时使用超过其维度的索引:
```python
import numpy as np
a = np.array([[1, 2, 3], [4, 5, 6]])
print(a.shape) # 输出:(2, 3)
b = a.reshape(-1, 1)
print(b.shape) # 输出:(6, 1)
c = a.reshape(1, -1)
print(c.shape) # 输出:(1, 6)
print(a[0, 0]) # 输出:1
print(a[0, 1]) # 输出:2
print(a[0, 2]) # 输出:3
print(a[1, 0]) # 输出:4
print(a[1, 1]) # 输出:5
print(a[1, 2]) # 输出:6
print(a[0, 0, 0]) # 报错:IndexError: too many indices for array: array is 1-dimensional, but 3 were indexed
```
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