Number of 2D array to 3D array, extending third dimension
Try creating a new array that you fill with your 2D arrays

new3DArray = numpy.empty(10, 60, 100)
I have 10 different matrix of size (60, 100). I want to put them along the third dimension inside a for loop, so that the final shape is (10, 60, 100).
I tried with concatenate and end up with size (600, 100).