As a follow up to the discussion from a couple days ago ( I though I'd try graphing the highest-value relationships between Steem tags. Here are the top 20 covariances and bottom 20 covariances: Green

I looked at the Steem tags used in May 2018 using a covariance matrix. Covariance measures how closely two random variables match each other's values. Here, the random variables are binary variables (0