NumPy Array Sort

Sorting Arrays

Sorting means putting elements in an ordered sequence.

Ordered sequence is any sequence that has an order corresponding to elements, like numeric or alphabetical, ascending or descending.

The NumPy ndarray object has a function called sort(), that will sort a specified array.

Example

  import numpy as np

  arr = np.array([3, 2, 0, 1])

print(np.sort(arr))

Note: This method returns a copy of the array, leaving the original array unchanged.

You can also sort arrays of strings, or any other data type:

Example

  import numpy as np

  arr = np.array(['banana', 'cherry', 'apple'])

print(np.sort(arr))

Example

  import numpy as np

  arr = np.array([True, False, True])

print(np.sort(arr))

Sorting a 2-D Array

If you use the sort() method on a 2-D array, both arrays will be sorted:

Example

  import numpy as np

arr = np.array([[3, 2, 4], [5, 0, 1]])

print(np.sort(arr))