获得x，y，z，通过3D数据阵列表示

Question

Suppose I have an array which is NxNxN and I want to create an averaged array which stacks each direction. xy (averaged over z), xz (averaged over y), yz (averaged over x)

For xy I would do:

np.mean(data,axis=1, dtype=np.float64)

Do I simply use axis=1 [or 2 or 3] to stack it in each direction?

Answer 1

If your NxNxN array is a numpy.ndarray :

xy = NNN.mean(axis=2)
xz = NNN.mean(axis=1)
yz = NNN.mean(axis=0)