Learning to Data

Tutorials, Books, and Guides


How to Make Dot Plots in R

It's easy to draw dots. The challenge is to make them meaningful and readable.

How to Make Line Charts in R

Learn to draw lines wherever and however you want, and you've got yourself some flexibility.

R Cheat Sheet and Guide for Graphical Parameters

You can customize graphics in R with par(), but the docs are mostly text and just organized alphabetically. Here is a more visual reference, categorized by what you can change. Plus, a one-page printout.

How to Make and Use Bar Charts in R

The chart type seems simple enough, but there sure are a lot of bad ones out there. Get yourself out of default mode.

Making an Interactive Map with Category Filters

Let readers focus on the regions they care about to make their own comparisons and conclusions.
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Guides and Tips

  • Bivariate choropleth how-to

    Your standard choropleth map shows geographic areas colored by a single variable. You're reading this, so you've seen them before. What if you have two…
  • How to Make Government Data Sites Better

    Accessing government data from the source is frustrating. If you've done it, or at least tried to, you know the pain that is oddly formatted…
  • Naked Statistics

    Naked Statistics by Charles Wheelan promises a fun, non-boring introduction to statistics that doesn't leave you drifting off into space, thinking about anything that is…
  • Getting started with visualization after getting started with visualization

    Here's where to go next once you've covered the basics of visualization. When it's time to actually start making things.
  • Flexible data

    Data is an abstraction of something that happened in the real world. How people move. How they spend money. How a computer works. The tendency…
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