Session Summary:

I propose a talk on visualizing distributions and uncertainty using {ggdist}. I will describe how to think systematically about distributional visualization as mappings of PDFs, CDFs, and quantile functions onto aesthetics, and how support for this enables creative and easy exploration of the space of possible uncertainty visualizations. I will highlight features like true gradient support in R 4.1, support for distribution vector datatypes, and the automatic binwidth- selecting geom_dots(). I expect to leave the audience with: (1) a systemic way to think about visualizing distributions and uncertainty in the grammar of graphics and (2) an understanding of how to actually do it using ggdist.

Talk materials are available at

Session Details


11:35 AM to 11:40 AM

Potomac D

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Matthew Kay

Northwestern University

Matthew Kay is an Assistant Professor jointly appointed in Computer Science and Communications Studies at Northwestern University. He works in human-computer interaction and information visualization, including uncertainty visualization and the design of human- centered tools for data analysis. He co-directs the Midwest Uncertainty Collective and is the author of the tidybayes and [ggdist] ( R packages for visualizing Bayesian statistical model output and uncertainty.