ggplot
An implementation of the grammar of graphics in R.
Check out the documentation for ggplot2 - the next generation
ggplot is an implementation of the grammar of graphics in R. It combines the advantages of both base and lattice graphics: conditioning and shared axes are handled automatically, while maintaining the ability to build up a plot step by step from multiple data sources. It also implements a more sophisticated multidimensional conditioning system and a consistent interface to map data to aesthetic attributes.
Along with reshape, ggplot won the 2006 John Chambers Award for Statistical Computing. Reshape provides a set of convenient tools for rearranging and summarising your data.
Installation
- Released version (0.4.1):
install.packages("ggplot", dep=T). (see changes)
Getting started
- Attend a ggplot course
- See
?ggplot(orexample(ggplot)) to get started - Check out the introductory vignette: vignette("introduction").
- Read about converting from lattice
- See examples of plot templates
Useful techniques
- Building up a graphic piece by piece using the tips data
- Use reshape and ggplot together to investigate sensory data
- Create a function to add standard elements to a plot illustrated with the JSM 2006 data expo data
Presentations
- A Grammar of Graphics, (PDF, 620k). The University of Auckland, November, 2006
- A Grammar of Graphics, (PDF, 620k). AT&T, October, 2006
- Data checking with reshape and ggplot (PDF, 1.1 meg), Reisensburg, June 2006. Example code.
- Kaleidoscope session, UserR conference (PDF, 700k), June 2006.
- Talk (PDF, 700k), May 2006. Augsburg Universität. Example code.
- VIGRE Seminar (PDF, 400k), April 2006. Iowa State University.
Thanks
Thanks to Di Cook, Charlotte Wickham, John Shirley, Günther Sawitzki, Gabor Grothendieck, Timm Danker for their bug reports, complaints about missing features and suggestions for improvements