NumPy: Create an empty and a full array
Create Empty and Full Array
Write a NumPy program to create an empty and full array.
Sample Solution:-
Python Code:
# Importing the NumPy library with an alias 'np'
import numpy as np
# Creating an empty array of shape (3, 4) using np.empty()
x = np.empty((3, 4))
# Printing the empty array 'x'
print(x)
# Creating a filled array of shape (3, 3) with all elements as 6 using np.full()
y = np.full((3, 3), 6)
# Printing the filled array 'y'
print(y)
Sample Output:
[[ 6.93643969e-310 8.76783124e-317 6.93643881e-310 6.79038654e-31 3] [ 2.22809558e-312 2.14321575e-312 2.35541533e-312 2.42092166e-32 2] [ 7.46824097e-317 9.08479214e-317 2.46151512e-312 2.41907520e-31 2]] [[6 6 6] [6 6 6] [6 6 6]]
Explanation:
In the above code –
x = [10, 20, 30]: Defines a list called ‘x’ with three integer elements.
x = np.append(x, [[40, 50, 60], [70, 80, 90]]): The np.append() function is used to append two lists of three elements each to the original list ‘x’. The resulting object is converted into a NumPy array and stored back into ‘x’.
Python-Numpy Code Editor: