Let’s see How to get the unique elements of an array using NumPy. So for finding unique elements from the array we are using numpy.unique() function of NumPy library.
Syntax: np.unique(Array)
Return: Return the unique of an array.
Now, Let’s see the examples:
Example 1:
Python3
# import libraryimport numpy as np # create 1d-arrayarr = np.array([3, 3, 4, 5, 6, 5, 6, 4])# find unique element # from a arrayrslt = np.unique(arr)print(rslt) |
Output:
[3 4 5 6]
Example 2:
Python3
# import libraryimport numpy as np# create a numpy 2d-arrayarr = np.array([[9, 9, 7, 7], [3, 4, 3, 4]])# find unique element# from a arrayrslt = np.unique(arr)print(rslt) |
Output:
[3 4 7 9]