import numpy as np a = np.array([[1,2,3],[4,5,6],[7,8,9]]) #----------------------- # array([[1, 2, 3], # [4, 5, 6], # [7, 8, 9]]) #----------------------- b = np.array([[10,20,30],[40,50,60],[70,80,90]]) #----------------------- # array([[10, 20, 30], # [40, 50, 60], # [70, 80, 90]]) #----------------------- np.vstack((a,b)) #----------------------- # array([[ 1, 2, 3], # [ 4, 5, 6], # [ 7, 8, 9]
