如何在Python中将单例数组转换为标量值? [英] How to convert singleton array to a scalar value in Python?

问题描述

假设我有1x1x1x1x ...数组，并希望将其转换为标量?

Suppose I have 1x1x1x1x... array and wish to convert it to scalar?

我该怎么做?

squeeze没有帮助.

import numpy as np

matrix = np.array([[1]])
s = np.squeeze(matrix)
print type(s)
print s

matrix = [[1]]
print type(s)
print s

s = 1
print type(s)
print s

推荐答案

您可以使用item()函数:

import numpy as np

matrix = np.array([[[[7]]]])
print(matrix.item())

输出

7

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