How to Use Unknown Dimensions When Reshaping in NumPy


In this example, we will learn how to use unknown dimensions when reshaping in Python NumPy.

Source Code

import numpy as np

n = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12])

reshape_n = n.reshape(2, -1, 3)

print(reshape_n)

Output:

[[[ 1  2  3]
  [ 4  5  6]]

 [[ 7  8  9]
  [10 11 12]]]
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