(This article was first published on

**Inundata » R**, and kindly contributed to R-bloggers)

My friend Jonah asked me to guest lecture in his R seminar aimed at grad students and postdocs in Integrative Biology. I gave Jonah a bunch of topic options ranging from reproducible research with R to data manipulation. The consensus was data visualization so I put together a 2 hour talk/hands on presentation for ggplot2 beginners. Here are my slides and code in case anyone else might benefit from it.

## What worked

- People got a good sense of what’s possible with
`ggplot2`

even if they couldn’t keep up with the examples. - The code worked for most attendees except for a few glitches (see below).

## What didn’t work

- Several people still had very old copies of R or outdated copies of ggplot dependencies (which made their upgrade a little less intuitive).
- Sourcing code/data from GitHub using devtools
`source_url`

doesn’t seem to work on Windows machines. I can’t replicate the problem without access to one but I might have to work out a better way to share data.

Slides are on Speakerdeck and the full repository is on GitHub. Please feel free to reuse, remix, or contribute to this presentation.

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