Assignment 3b

Author

Anastasiia Gmyrina

Approach

For this assignment I will use the movie ratings database from the previous assignment. The goal is to use Global Baseline Estimate to predict ratings for movies not yet seen by users. I will calculate the overall mean of all available ratings. Then I will calculate the average rating for each user and each movie and compare these averages to the global mean to find the user and movie effects. Then I will identify missing ratings, and assghn them new predicted values.

---
title: "Assignment 3b"
author: "Anastasiia Gmyrina"
editor: visual
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## Approach

For this assignment I will use the movie ratings database from the previous assignment. The goal is to use Global Baseline Estimate to predict ratings for movies not yet seen by users. I will calculate the overall mean of all available ratings. Then I will calculate the average rating for each user and each movie and compare these averages to the global mean to find the user and movie effects. Then I will identify missing ratings, and assghn them new predicted values.

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