>>> x = np.array([11,22])
>>> y = np.array([18,7,6])
>>> z = np.array([1,3,5])
>>> np.concatenate((x,y,z))
array([11, 22, 18, 7, 6, 1, 3, 5])
>>> x = np.array([[1,11],[22,27]])
>>> y = np.array([[9,12],[122,17]])
>>> np.concatenate((x,y))
>>> np.concatenate((x,y),axis=0)
array([[ 1, 11],
[ 22, 27],
[ 9, 12],
[122, 17]])
>>> np.concatenate((x,y),axis=1)
array([[ 1, 11, 9, 12],
[ 22, 27, 122, 17]])
Default Value