Running Average with Fixed Window | Dataford Interview Questions

Write a function to parse a stream of real-time sensor readings and calculate a running average using a fixed-size window.

Implement running_average(readings, window_size). readings is an iterable of numeric values, and the function must return a list containing one average after each reading. During warm-up, average all readings received so far; afterward, average only the most recent window_size readings. Preserve input order and return an empty list for an empty stream.

Constraints

0 <= len(readings) <= 100000
1 <= window_size
Each reading is a finite integer or floating-point value
Return one floating-point average per input reading

Function Signature

def running_average(readings, window_size):

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Problem

Write a function to parse a stream of real-time sensor readings and calculate a running average using a fixed-size window.

Constraints

0 <= len(readings) <= 100000
1 <= window_size
Each reading is a finite integer or floating-point value
Return one floating-point average per input reading

Function Signature

def running_average(readings, window_size):

Your question is Running Average with Fixed Window. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.