How to empty an array in Numpy?

Let’s learn how to empty an array in Numpy. We will use the Numpy empty method and a clever trick.

There are 2 different ways to empty an array in Numpy.

Numpy empty

The first method is to use the Numpy empty function.

import numpy as np

my_array = np.empty(shape=(0, 0))
print(f"My empty array: \n{my_array}")

An empty function creates an empty matrix. Thanks to shape parameters, you can define the shape of an array. Of course, you can change it in the future by using the reshape function.

An empty array

Another way is just to create an array but not set any elements in that array. Python allows us to do that.

import numpy as np

my_array = np.array([])
print(f"My empty array: \n{my_array}")

The result is exactly the same. Which way would you prefer to choose to create an empty matrix in Numpy?

How to empty an array in Numpy

There are 2 different ways to empty an array in Numpy:

Using the `empty()` function
Creating an empty array