How to create 3 dimensions matrix in numpy , like matlab a(:,:,:)
a=np.empty((2,3,5))
creates a 2x3x5 array. (There is also np.zeros if you want the values initialized.)
You can also reshape existing arrays:
a=np.arange(30).reshape(2,3,5)
np.arange(30) creates a 1-d array with values from 0..29. The reshape() method returns an array containing the same data with a new shape.