- Trending Categories
- Data Structure
- Operating System
- C Programming
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Python – Remove Columns of Duplicate Elements
When it is required to remove columns of duplicate elements, a method is defined that creates an empty set. The list is iterated over, and if it is not found, it is added to the set.
Below is a demonstration of the same
from itertools import chain def remove_dupes(my_sub): my_string = set() for i, elem in enumerate(my_sub): if elem not in my_string: my_string.add(elem) else: yield i my_list = [[5, 1, 6, 7, 9], [6, 3, 1, 9, 1], [4, 2, 9, 8, 9], [5, 1, 6, 7, 3]] print("The list is : ") print(my_list) K = 3 temp_idxs = set(chain.from_iterable(remove_dupes(sub) for sub in my_list)) my_result = [[elem for i, elem in enumerate( sub) if i not in temp_idxs] for sub in my_list] print("The result is : ") print(my_result)
The list is : [[5, 1, 6, 7, 9], [6, 3, 1, 9, 1], [4, 2, 9, 8, 9], [5, 1, 6, 7, 3]] The result is : [[5, 1, 6, 7], [6, 3, 1, 9], [4, 2, 9, 8], [5, 1, 6, 7]]
The required packages are imported into the environment.
A method named ‘remove_dupes’ is defined that takes a list as a parameter.
An empty set is created.
The elements in the list are enumerated over, and if an element is not found, it is added to the empty set.
Otherwise, the iterator of the enumeration is yielded.
Outside the function, a list of list is defined and is displayed on the console.
A value for ‘K’ is defined.
The method is called by iterating over it.
It is converted to a set and is assigned to a variable.
Again, it is enumerated, and iterated and stored in a result variable.
This result variable is displayed as output on the console.
- Python prorgam to remove duplicate elements index from other list
- Remove duplicate elements in Java with HashSet
- How to remove duplicate elements of an array in java?
- Python – Remove Elements in K distance with N
- Python program to remove duplicate elements from a Circular Linked List
- Java Program to Remove duplicate elements from ArrayList
- Python program to remove duplicate elements from a Doubly Linked List\n
- How to remove duplicate columns from a matrix in R?
- Python – Insert character in each duplicate string after every K elements
- Python – Test if all elements are unique in columns of a Matrix
- Python – Get the datatypes of columns
- C# program to remove duplicate elements from a List
- Remove duplicate tuples from list of tuples in Python