How to remove specific elements from a NumPy array?¶

To remove specific elements from a NumPy array, you can use boolean indexing to select only the elements you want to keep, and then create a new array from those elements.

Here's an example that removes all occurrences of a specific value (e.g., 0) from a NumPy array:

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import numpy as np

# create an example array
a = np.array([1, 0, 2, 0, 3, 0, 4])

# use boolean indexing to select only the elements that are not 0
a = a[a != 0]

# print the result
print(a)

[1 2 3 4]

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