yeroon.net/ggplot2

To cite lme4, use the following 2 references:

Jeroen C.L. Ooms (2009). yeroon.net/ggplot2: A web interface for the R package ggplot2. 
Version 0.1. http://www.yeroon.net/ggplot2

Hadley Wickham (2009). ggplot2: An implementation of the Grammar of Graphics. 
R package version 0.8.3. http://CRAN.R-project.org/package=ggplot2

A BibTeX entry for LaTeX users is

@Manual{,
title = {yeroon.net/ggplot2: A web interface for the R package ggplot2},
author = {Jeroen C.L. Ooms},
year = {2009},
note = {Version 0.1},
url = {http://www.yeroon.net/ggplot2},
}

@Manual{,
title = {ggplot2: An implementation of the Grammar of Graphics},
author = {Hadley Wickham},
year = {2009},
note = {R package version 0.8.3},
url = {http://CRAN.R-project.org/package=ggplot2},
}

Welcome to yeroon.net/ggplot version 0.1!

library(foreign);

library(ggplot2);

 > ggplot()