How can I reshape arrays using NumPy in Python?

How can I reshape arrays using NumPy in Python?

You can use the reshape() function in NumPy to change the shape of an array. For example, if you have a 1D array with 6 elements, you can reshape it to a 2D array with 2 rows and 3 columns.

Can you show me an example of reshaping a 1D array to a 2D array?

Sure! Here's an example:

import numpy as np

array_1d = np.array([1, 2, 3, 4, 5, 6])
array_2d = array_1d.reshape(2, 3)
print(array_2d)

This will output:

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

What happens if the new shape is not compatible with the original array size?

If the new shape is not compatible, NumPy will raise a ValueError. For example, trying to reshape an array of size 6 into a shape of (2, 4) will fail.