35 Ways Data Go Bad

Analyze enough data sets and you’ll see them all.

Charlie Kufs
Jul 11, 2020 · 19 min read

When you take your first statistics class, your professor will be a kind person who cares about your mental well-being. OK, maybe not, but what the professor won’t do is give you real-world data sets. The data may represent things you find in the real world but the data set will be free of errors. Real-world data is packed full of all kinds of errors — in individual data points (matrix cells) and within whole metrics (matrix columns) or observations (matrix rows) in the data set — that can be easy to find or…