The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()处理代码
时间: 2023-07-23 17:21:50 浏览: 99
json error: Use of overloaded operator [] is ambiguous错误的解决方法
好的,以下是一个例子,假设我们有一个numpy数组a:
```
import numpy as np
a = np.array([True, False, True])
```
如果我们尝试对a进行逻辑运算,就会出现错误:
```
if a:
print("All elements are True")
else:
print("At least one element is False")
```
运行后会得到以下错误信息:
```
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
```
这时候,我们需要使用`any()`或`all()`函数来处理:
```
if a.all():
print("All elements are True")
else:
print("At least one element is False")
```
或者
```
if a.any():
print("At least one element is True")
else:
print("All elements are False")
```
这样就可以避免出现错误了。
阅读全文