NumPy: Make the length of each element 15 of a given array and the string centered / left-justified / right-justified with paddings of _
NumPy String: Exercise-4 with Solution
Write a NumPy program to make the length of each element 15 of a given array and the string centered / left-justified / right-justified with paddings of _.
import numpy as np x = np.array(['python exercises', 'PHP', 'java', 'C++'], dtype=np.str) print("Original Array:") print(x) centered = np.char.center(x, 15, fillchar='_') left = np.char.ljust(x, 15, fillchar='_') right = np.char.rjust(x, 15, fillchar='_') print("\nCentered =", centered) print("Left =", left) print("Right =", right)
(['python exercises', 'PHP', 'java', 'C++'], dtype=np.str)
Original Array: ['python exercises' 'PHP' 'java' 'C++'] Centered = ['python exercise' '______PHP______' '______java_____' '______C++______'] Left = ['python exercise' 'PHP____________' 'java___________' 'C++____________'] Right = ['python exercise' '____________PHP' '___________java' '____________C++']
Python Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous: Write a NumPy program to capitalize the first letter, lowercase, uppercase, swapcase, title-case of all the elements of a given array.
Next: Write a NumPy program to insert a space between characters of all the elements of a given array.
What is the difficulty level of this exercise?
Test your Python skills with w3resource's quiz
Python: Tips of the Day
Getting the last element of a list:
some_list[-1] is the shortest and most Pythonic.
In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.
You can also set list elements in this way. For instance:
>>> some_list = [1, 2, 3] >>> some_list[-1] = 5 # Set the last element >>> some_list[-2] = 3 # Set the second to last element >>> some_list [1, 3, 5]
Note that getting a list item by index will raise an IndexError if the expected item doesn't exist. This means that some_list[-1] will raise an exception if some_list is empty, because an empty list can't have a last element.
- New Content published on w3resource:
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework