Tutorials

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

How to Make Marimekko Charts in Excel

Marimekko charts, or mosaic plots, allow you to compare categories over two quantitative variables.

How to Make Symbol-based Glyph Charts, with R Examples

Using geometric shapes as an encoding can provide another dimension to your charts.

How to Make a Heatmap in Excel

Heatmaps quickly translate data tables into a visual form, making them a great tool to explore a new dataset.

How to Untangle a Spaghetti Line Chart (with R Examples)

Put multiple time series lines on the same plot, and you quickly end up with a mess. Here are practical ways to clean it up.

How to Make a Customized Excess Mortality Chart in Excel

Show current evolution against expected historical variability and add one or more series that could account for the difference.

How to Make a Spiral Chart in R

Using a spiral might not be the best way to encode data. But here's how to do it anyway. Just in case.

How to Make Difference Charts in Excel

Also known as a bivariate area chart, the plot type focuses on the comparison between two time series.

How to Make Animated Histograms in R, with ggplot and gganimate

Make them move to show a shift in distributions over time.

How to Visualize Anomalies in Time Series Data in R, with ggplot

Quickly see what's below and above average through the noise and seasonal trends.