Mosaicplots in the ggplot2 framework: ggmosaic

** Background

Explain the motivation for your coding project. What problem would it solve?

** Related work

What other R packages with similar functionality already exist? Why aren't they good enough?

** Details of your coding project

What exactly do you want your student to code in the 3-month deadline? What functions? What do they do? Docs? Tests? Vignettes?

** Expected impact

Mentors, please explain how this project will produce a useful package for the R community.

** Mentors

Once you have a solution to the medium or/and the hard problem, please get in touch with [[https://github.com/heike][Heike Hofmann]] hofmann@iastate.edu and/or [[https://github.com/dicook][Dianne Cook]].

** Tests

Several tests that potential students can do to demonstrate their capabilities for this particular project. Please modify the suggestions below to make them specific for your project.

• Easy: Install the [[https://github.com/hadley/productplots][productplots package]] from github (you might have to install the devtools package first). Run one of the examples, put the chart in a knitr/Rmarkdown document and write a paragraph to explain the chart.
• Medium: something a bit more complicated. You can encourage students to write a script or some functions that show their R coding abilities.
• Hard: Can the student write a package with Rd files, tests, and vigettes? If your package interfaces with non-R code, can the student write in that other language?

** Solutions of tests

Students, please post a link to your test results here.