Foundry: Columns View

Early prototype of a tool for familiarizing yourself with unfamiliar datasets. If I just downloaded a bunch of data and I have no idea what's in there, how can I quickly tell what might be useful, or what's messy/broken?

This breaks down each column in a tabular dataset. For example, this column is mostly null so it's probably useless, or there are 91 different US states in this dataset—what?!