Example 1: append element to an array python
x = ['Red', 'Blue']
x.append('Yellow')
Example 2: numpy append number to array
import numpy as np
a = np.array([1, 2, 3])
newArray = np.append(a, [10, 11, 12])
Example 3: append value to numpy array
x = np.random.randint(2, size=10)
x = np.append(x, 2)
Example 4: how append row in numpy
import numpy as np
arr = np.empty((0,3), int)
print("Empty array:")
print(arr)
arr = np.append(arr, np.array([[10,20,30]]), axis=0)
arr = np.append(arr, np.array([[40,50,60]]), axis=0)
print("After adding two new arrays:")
print(arr)
Example 5: np append row
A= [[1, 2, 3], [4, 5, 6]]
np.append(A, [[7, 8, 9]], axis=0)
>> array([[1, 2, 3],
[4, 5, 6],
[7, 8, 9]])
np.r_[A,[[7,8,9]]]
Example 6: np array append
>>> import numpy as np
>>> np.append([[0, 1, 2], [3, 4, 5]],[[6, 7, 8]], axis=0)
array([[0, 1, 2],
[3, 4, 5],
[6, 7, 8]])