append numpy arrays in place code example

Example 1: append value to numpy array

x = np.random.randint(2, size=10)
x = np.append(x, 2)

Example 2: how to append two numpy arrays

#concatenating through column(axis = 1)
numpy.concatenate((N,M),1)

Example 3: append vector to vector python

Xa = ['a1','a2','a3']
Xb = ['b1','b2','b3']
Xc = ['c1','b2','b3']

resultArray = []
resultArray.append(Xa)
resultArray.append(Xb)
resultArray.append(Xc)