In this fantasy football model, I take aggregated expert ranking data from Fantasypros.com and pass it into a clustering algorithm called the Gaussian mixture model. The algorithm finds players who are ranked similarly and discovers natural tiers within the data. The results is a series of simple charts that can help you decide your fantasy football line up each week. Match ups, injuries, strength of offense and defense are all accounted for. For more intuition behind the model, you can read this introduction.
(1) Link: Week 7 Tier Commentary
(2) Favor higher tier players.
(3) When choosing between players of the same tier, flip a coin or go with your gut.
Rest of Season:
I'm happy to announce the return of ROS tiers, check them out here:
(1) Why are the flex charts inconsistent with the RB and WR charts?
This happens because flex is an after thought for many experts. Less experts submit rankings to Fantasypros, and they're not graded on them. Flex tiers are always one of the more debatable charts.
(2) How accurate are these tiers?
Here is a link to last year's accuracy.
(3) When do you update the charts?
Every day. Check the last updated timestamp.
(4) The New York Times chart says "Aug 6, 2014". Is it updated?
Yes, the date reflects when the very first chart went up for week 1. The charts are updated daily.
Charts moved to navigation menu on the right.
Percy Harvin should be removed from all line ups. The Jets have already played this week.