python - 类型错误 : 'tuple' object cannot be interpreted as an integer

Question

我有 x0，它是一个 float64 (64,64) 数组。每当我尝试这个时:

    delta = np.random.randn(x0.shape)

它给出了标题错误。这是非常基本的，以至于我全神贯注。我错过了什么？谢谢

完整回溯如下:

Traceback (most recent call last):

  File "<ipython-input-31-dcd2365ed519>", line 1, in <module>
    delta = np.random.randn(x0.shape)

  File "mtrand.pyx", line 1420, in mtrand.RandomState.randn

  File "mtrand.pyx", line 1550, in mtrand.RandomState.standard_normal

  File "mtrand.pyx", line 167, in mtrand.cont0_array

TypeError: 'tuple' object cannot be interpreted as an integer

Answer 1

np.random.randn() 需要整数参数，格式为 randn(64,64)。您以 randn((64,64)) 的形式提供 np.random.randn() 参数，这是它不期望的。相反，如果您想构建一个 64x64 随机数组，则需要单独传递行数和列数，而不是作为元组传递。