The boxplot with sample size information is one of the features included in the HH package. An example is posted on my site http://astro.ocis.temple.edu/~rmh/HH/bwplot-color.pdf
In this example I show grouping, control of x-axis position, multiple x-axis labels, and control of display of extreme outliers. Rich ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.