Tutorials

Learn to visualize your data like an expert with these practical how-tos for presentation, analysis, and understanding.

Small Multiples in R

Make a lot of charts at once, line them up in a grid, and you can make quick comparisons across several categories.

How to Make an Animated Growth Map in R

Although time series plots and small multiples can go a long way, animation can make your data feel more real and relatable. Here is how to do it in R via the animated GIF route.

Using Transparency in R to Improve Clarity

When you plot a lot of data at once, points and lines can obscure others and hide patterns. Transparency can help reveal what is really there.

How to Animate Transitions Between Multiple Charts

Animated transitioning between chart types can add depth to your data display. Find out how to achieve this effect using JavaScript and D3.js.

Getting Started with Charts in R

You get a lot of bang for the buck with R, charting-wise, but it can be confusing at first, especially if you've never written code. Here are some examples to get started.

How to Make an Interactive Choropleth Map

When presented with a static graphic, it can be useful to see specific values after you see overall patterns. This tutorial shows you how to add simple interactions to a choropleth map so you can get specifics for regions.

More on Making Heat Maps in R

You saw how to make basic heat maps a while back, but you might want more flexibility for a specific data set. Once you understand the components of a heat map, the rest is straightforward.

Mapping with Diffusion-based Cartograms

Sometimes these cartograms can distort areas beyond recognition, but they can also provide a better visual representation for a region with a wide range of subregions. At the least, they're fun to look at.

How to Make an Interactive Network Visualization

Interactive network visualizations make it easy to rearrange, filter, and explore your connected data. Learn how to make one using D3 and JavaScript.

A Variety of Area Charts with R

From the basic area chart, to the stacked version, to the streamgraph, the geometry is similar. Once you know how to do one, you can do them all.

How to Draw in R and Make Custom Plots

When base graphics and existing packages don't do it for you, turn to low-level graphics functions to make what you want.

How to Visualize and Compare Distributions

Single data points from a large dataset can make it more relatable, but those individual numbers don't mean much without something to compare to. That's where distributions come in.

How to Make a Sankey Diagram to Show Flow

These tend to be made ad hoc and are usually pieced together manually, which takes a lot of time. Here's a way to lay the framework in R, so you don't have to do all the work yourself.

Interactive Time Series Chart with Filters

Time series charts can easily turn to spaghetti when you have multiple categories. By highlighting the ones of interest, you can direct focus and allow comparisons.

Calendar Heatmaps to Visualize Time Series Data

The familiar but underused layout is a good way to look at patterns over time. This tutorial gives you an easy way to make them and guides you through the code so you can adapt it to your needs.