Nothing
A collection of coding functions as alternatives to the standard functions in the stats package, which have names starting with 'contr.'. Their main advantage is that they provide a consistent method for defining marginal effects in factorial models. In a simple oneway ANOVA model the intercept term is always the simple average of the class means.
Package details 


Author  Bill Venables 
Maintainer  Bill Venables <Bill.Venables@gmail.com> 
License  GPL (>= 2) 
Version  0.3.2 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.