w3resource

NumPy Masked Arrays: Exercises and Solutions

NumPy Masked Arrays [ 20 exercises with solution]

Following exercises will help you practice using masked arrays to handle missing or invalid data in NumPy, enhancing your data manipulation and analysis skills.

[An editor is available at the bottom of the page to write and execute the scripts. Go to the editor]

1. Write a NumPy program that creates a masked array from a regular NumPy array with some specified values masked.
Click me to see the sample solution

2. Write a NumPy program that creates a masked array and fills the masked values with a specified number.
Click me to see the sample solution

3. Write a NumPy program to compute the mean of a masked array, ignoring the masked values.
Click me to see the sample solution

4. Write a NumPy program that creates a masked array where all elements greater than a specified value are masked.
Click me to see the sample solution

5. Write a NumPy program to replace all masked values in a masked array with the mean of the unmasked elements.
Click me to see the sample solution

6. Write a NumPy program to create a masked array and count the number of masked elements.
Click me to see the sample solution

7. Write a NumPy program to perform element-wise addition of two masked arrays, maintaining the masks.
Click me to see the sample solution

8. Write a NumPy program to create a masked array from a 2D NumPy array and mask all values in a specified row.
Click me to see the sample solution

9. Write a NumPy program that creates a masked array and uses logical operations to mask elements based on a condition.
Click me to see the sample solution

10. Write a NumPy program to create a masked array and find the maximum value, ignoring the masked elements..
Click me to see the sample solution

11. Write a NumPy program to create a masked array and find the indices of all unmasked elements.
Click me to see the sample solution

12. Write a NumPy program to create a masked array and convert it back to a regular NumPy array, replacing the masked values with NaN.
Click me to see the sample solution

13. Write a NumPy program that creates a masked array and performs a masked operation, such as masked multiplication.
Click me to see the sample solution

14. Write a NumPy program that creates a masked array and applies a custom function only to the unmasked elements.
Click me to see the sample solution

15. Write a NumPy program that creates a masked array and extracts the unmasked data as a regular NumPy array.
Click me to see the sample solution

16. Write a NumPy program to create a masked array and perform a masked sum operation, ignoring the masked elements.
Click me to see the sample solution

17. Write a NumPy program that creates a masked array from a regular array and mask values based on a complex condition.
Click me to see the sample solution

18. Write a NumPy program that creates a masked array and changes the mask to include additional elements.
Click me to see the sample solution

19. Write a NumPy program that creates a masked array and applies a mathematical function (e.g., sin, cos) only to the unmasked elements.
Click me to see the sample solution

20. Write a NumPy program that creates a masked array and checks if any masked elements are present.
Click me to see the sample solution

Python-Numpy Code Editor:

More to Come !

Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.

Test your Python skills with w3resource's quiz



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://www.w3resource.com/python-exercises/numpy/python-numpy-masked-arrays.php