What documentation exists for R?

Chapter 5: R Add-On Packages 33
accuracy A suite of tools designed to test and improve the accuracy of statistical computation.
acepack ACE (Alternating Conditional Expectations) and AVAS (Additivity and VAriance
Stabilization for regression) methods for selecting regression transformations.
actuar Functions related to actuarial science applications.
ada Performs boosting algorithms for a binary response.
adabag Adaboost.M1 and Bagging.
adapt Adaptive quadrature in up to 20 dimensions.
ade4 Multivariate data analysis and graphical display.
ade4TkGUI
Tcl/Tk Graphical User Interface for ade4.
adehabitat
A collection of tools for the analysis of habitat selection by animals.
adimpro Adaptive smoothing of digital images.
adlift Adaptive Wavelet transforms for signal denoising.
agce Analysis of growth curve experiments.
agricolae Statistical procedures for agricultural research.
agsemisc Miscellaneous plotting and utility functions.
akima Linear or cubic spline interpolation for irregularly gridded data.
allelic A fast, unbiased and exact allelic exact test.
alr3 Methods and data to accompany the textbook “Applied Linear Regression” by
S. Weisberg, 2005, Wiley.
amap Another Multidimensional Analysis Package.
analogue Analogue methods for palaeoecology.
aod Analysis of Overdispersed Data.
apTreeshape
Analyses of phylogenetic treeshape.
ape Analyses of Phylogenetics and Evolution, providing functions for reading and
plotting phylogenetic trees in parenthetic format (standard Newick format),
analyses of comparative data in a phylogenetic framework, analyses of diversification
and macroevolution, computing distances from allelic and nucleotide
data, reading nucleotide sequences from GenBank via internet, and several tools
such as Mantel’s test, computation of minimum spanning tree, or the population
parameter theta based on various approaches.
aplpack Another PLot PACKage: stem.leaf, bagplot, faces, spin3R, . . ..
arules Mining association rules and frequent itemsets with R.