将列表转换为数组时减少维度 [英] Reduce Dimensons when converting list to array

问题描述

我想在将数组转换为列表后减小数组的尺寸

I want to reduce the dimensions of an array after converting it to a list

a = np.array([[1,2],[3,4]])
print a.shape
b = np.array([[1],[3,4]])
print b.shape

输出:

(2, 2)
(2,)

我希望a与b具有相同的形状，即(2，)

I want a to have the same shape as b i.e. (2,)

推荐答案

>>> a = np.array([[1,2],[3,4], None])[:2]
>>> a
array([[1, 2], [3, 4]], dtype=object)
>>> a.shape
(2,)

工程，但是可能是错误的方法(我是个笨拙的新手).

Works, though is probably the wrong way to do it (I'm a numpy newb).

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