How to Calculate Average of Sub-lists in a List of Lists Using Python
How can we calculate the average of each sub-list in a list of lists using Python?
Let's dive into the step-by-step process to calculate the average values of sub-lists in a list of lists.
Solution: Calculating Average of Sub-lists in a List of Lists
To calculate the average of each sub-list in a list of lists using Python, you can follow these steps:
Step 1:Initialize an empty list to store the average values.
Step 2:Iterate over each sub-list in the main list.
Step 3:Calculate the average of the current sub-list by summing up all elements and dividing by the length of the sub-list.
Step 4:Append the computed average to the list of averages.
Step 5:Return the list containing the average values of sub-lists in the same order as the input list.
Creating a function to calculate the average of sub-lists in a list of lists in Python involves using the accumulator pattern and processing nested lists with a for loop. By following the steps mentioned above, you can efficiently compute and return the average values.
The provided Python code snippet demonstrates the implementation of a function called `get_list_avg()` that accomplishes this task. It takes a parameter `main_list`, which is a list of lists, and returns a new list containing the average of each sub-list.
The function handles empty lists by returning an empty list as the result. It correctly computes the average by summing up elements in each sub-list and dividing by the length of the sub-list. This ensures that the order of the averages aligns with the order of sub-lists in the main list.